By pregnancy week 9, your baby is between 22 and 30 mm long, which is about an inch. You could consider your baby to be equivalent in size to a cherry tomato!
Your baby weighs less than one ounce, but will soon start putting on weight dramatically due to the organs and limbs that are continuing to form.
By now, most of the aspects of your baby's physical structure, such as head, arms, legs, and torso are in place. Your baby's tail should have disappeared by now, as well! If you were to peek in on your little one, you'd find they resemble a miniature human being (one with a very large head, that is!).
Your baby's face is becoming more distinct every day, with the mouth, nose and nostrils becoming clearly visible. His or her eyelids will fuse shut this week and won't open up again until your baby is about 27 weeks along.
At this point, your little one has most likely developed sex organs, however, your healthcare provider won't be able to discern them quite yet. Typically the sex of your baby can be determined by ultrasound between 18 and 20 weeks gestation.
Speaking of important organs, your baby's heart should have divided into four separate chambers now, as your baby continues to swim about gleefully inside your growing belly.
At 9 weeks pregnant, your uterus is still growing, now closer to a small cantaloupe than a grapefruit. By this week, you may notice that you feel more bloated and lethargic than ever before. You may notice an increase in weight gain, which may be more associated with fluid retention than actual weight. This may apply throughout your pregnancy week by week.
One thing you should avoid doing while pregnant is weighing yourself every day. Weight gain can fluctuate as much as 1-5 pounds in the course of a single day, and such fluctuations can be discouraging. If you can hold off until your prenatal visits, you might avoid the pain of constant weight fluctuations. If, however, you are determined to weigh yourself frequently during pregnancy, consider weighing once a week, at the same time of day, right after you get up in the morning and empty your bladder. Doing so will provide the most consistent results and will help eliminate excessive worries about daily weight changes. A new pair of maternity jeans will relieve the anxiety related to weight fluctuations.
Not all the weight you gain is stored as fat. At birth, your baby may weigh between 6 to 8 pounds. The uterus expands during pregnancy and may weigh about 2 pounds. The afterbirth or placenta generally weighs 1.5 pounds. Your breast tissue will grow during pregnancy and may weigh up to 1.5 to 2 pounds. Your blood volume will increase and add up to 4 pounds of weight. The fluid retained by your body during pregnancy can weigh as much as 4 pounds. The amniotic fluid surrounding your baby will weigh approximately 2 pounds. The maternal fat stores will add about 7 pounds of weight to your total weight gain. By the end of pregnancy you will gain approximately 18 to 35 pounds.
Here's the skinny on losing pregnancy weight after you deliver your baby... most women will lose the bulk of their pregnancy weight in the first three months after delivery. In general, you will lose 10-13 pounds during the birthing process from the weight of the infant and placenta. An additional 7-11 pounds will be lost after the first postpartum week. The remaining extra pounds will be shed with good eating habits and a regular pregnancy exercise program. You will be back to your normal weight and fitting into your pre-pregnancy clothes in just a short few months, as long as you take care to exercise and eat healthily in the weeks following pregnancy.
At 9 weeks pregnant, you may have noticed that your belly has "popped" just a bit. You won't be showing noticeably; in fact, strangers on the street may just think you're bloated or a little chubby. This will soon change as your pregnancy week by week continues. For most women, they start to show between 12 and 16 weeks pregnant (the third and fourth month of pregnancy).
As your belly and breasts continue to grow and expand in pregnancy, you may start to experience itchy skin. This is a normal pregnancy symptom, and it's often nothing to worry about. It's caused by hormonal changes, and the physical stretching of skin that occurs in pregnancy. You may find that normal things that made your skin itch (such as eczema or dry skin) makes it even itchier when you're pregnant.
A few other pregnancy symptoms that you may experience at 9 weeks pregnant include bloating and gas, morning sickness, headaches, and mood swings.
Gas and bloating are normal pregnancy symptoms to expect at 9 weeks. Although embarrassing, you may be passing more gas (i.e. flatulence) and burping more often. Gas is one of the most embarrassing symptoms that you'll experience, but it's completely normal. During pregnancy, your digestion is slowed down due to the high levels of progesterone, which relax the smooth muscle in your gastrointestinal tract.
To cope with gas and to decrease bloating, make sure that you eat more slowly and avoid foods that may you more gassy or bloated. Common food triggers include carbonated drinks, dairy products, and carbohydrates. Avoid drinking from a straw or bottle, since this can make you swallow air and lead to gassiness.
Morning sickness is at its peak at 9 weeks pregnant. As you struggle with nausea and vomiting this week, just remember that it won't be long before you feel better. For 50 percent of all women who suffer from morning sickness, their symptoms are gone completely by 14 weeks pregnant. It takes everyone else a few extra weeks for the queasiness to ease up. (Some women will be nauseous all 40 weeks, though.)
Headaches are a normal pregnancy symptom at 9 weeks pregnant and in the first trimester. Although uncomfortable, having a pounding head is a side effect of your raging hormones. Stress, fatigue, congestion, hunger, caffeine withdrawal, and dehydration can all contribute to the development of headaches in pregnancy. Fortunately, once your high levels of hormones stabilizes and your body gets used to the new changes in the second trimester, headaches often disappear completely.
Pregnancy related mood swings and anxiety are very common at 9 weeks pregnant. The flood of hormones that occur in the first trimester can wreck havoc on your emotions. You may find yourself crying over the littlest things. You might be happy one moment, and wildly depressed the next. Fatigue, morning sickness, and other unpleasant pregnancy symptoms can contribute to moodiness and emotional craziness. Mood swings tend to get better in the second trimester.
Your weight gain at 9 weeks pregnant is probably less than three pounds. Every woman gains her weight differently; so don’t be worried if you’re not gaining very much weight right now. Once you reach 14 weeks pregnant (the beginning of the second trimester), you will start to gain at least one or two pounds with each week that flies by.
Gaining weight is often much easier in the second trimester, since you are no longer plagued with morning sickness. You’ll start to crave foods again, and you will simply feel much better. Hang in there – you only have a few weeks left to go in the first trimester.
Did you know that your baby’s daddy can experience his own “pregnancy?” If your husband starts complaining about morning sickness at pregnancy 9 weeks, he may have “Couvade Syndrome,” or a sympathy pregnancy.
Men who have a sympathy pregnancy often experience common pregnancy symptoms, such as backaches, food cravings, mood swings, and fatigue. Don’t be surprised if your partner starts to gain weight alongside you. Some men with Couvade syndrome even start to report contractions at roughly the same time their wives do.
Couvade Syndrome usually goes away once your baby is born.
When was the last time you had your teeth cleaned? Are your gums red and puffy? Do your gums bleed when you brush and floss? If you answered yes to any of these questions you have an 18% increased chance of having a pre-term birth. Several studies have suggested that maternal periodontal disease may increase the risk for pre-term birth or low-birth-weight deliveries. Research has suggested that a visit with the dentist during pregnancy that includes a deep instrumental cleaning of your teeth may substantially lower your risk for pre-term delivery.
What's bad for the mouth is bad for the body; infections in the mouth can spread throughout the body, causing infection at distant sites. The infections associated with gum disease can produce periodontal toxins that cross the placenta, which may eventually result in pre-term birth. Pregnancy gingivitis is associated with red, puffy gums that bleed easily. The good news is that with a visit to the dentist and intense oral care, gingivitis can be reversed and minimize your risk for pre-term deliveries. Be sure you brush, floss, and rinse frequently and see a dentist regularly throughout your pregnancy to address any problems you may have and to prevent new ones from interfering with your pregnancy. It's hard to believe but simple attention to your oral hygiene may be all that is needed to ensure a safe and healthy delivery.
The American Dental Association has recommended several patient brochures for education of periodontal disease recognition and prevention. These include: " Women and Gum Disease," "What is Scaling and Root Planning?" and "Gum Disease: The Warning Signs."
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At 9 weeks pregnant, your uterus is still growing, now closer to a small cantaloupe than a grapefruit. By this week, you may notice that you feel more bloated and lethargic than ever before. You may notice an increase in 
At 9 weeks pregnant, you may have noticed that your belly has "popped" just a bit. You won't be showing noticeably; in fact, strangers on the street may just think you're bloated or a little chubby. This will soon change as your pregnancy week by week continues. For most women, they start to show between 12 and 16 weeks pregnant (the third and fourth month of pregnancy). 
Did you know that your baby’s daddy can experience his own “pregnancy?” If your husband starts complaining about morning sickness at pregnancy 9 weeks, he may have “Couvade Syndrome,” or a sympathy pregnancy. 
When was the last time you had your teeth cleaned? Are your gums red and puffy? Do your gums bleed when you brush and floss? If you answered yes to any of these questions you have an 18% increased chance of having a pre-term birth. Several studies have suggested that maternal periodontal disease may increase the risk for pre-term birth or low-birth-weight deliveries. Research has suggested that a visit with the dentist during pregnancy that includes a deep instrumental cleaning of your teeth may substantially lower your risk for pre-term delivery. 