![]() The sex of the fetus is determined at the time of fertilization, or conception, and depends on whether the egg receives an X or Y chromosome from a sperm cell. The egg or eggs can be fertilized by a sperm cell 12 to 24 hours after release, as the egg travels down the fallopian tube toward the uterus. Conception & implantationĪbout two weeks after a period, ovulation occurs, during which the ovaries release typically one egg, but sometimes two or more eggs. Your doctor will check your progress with a vaginal exam as you near your due date.Some medical experts suggest that mothers and doctors should also recognize a "fourth trimester," which is the 12-week period after birth in which babies are adjusting to life outside the womb and women are coping with motherhood and on-going changes in their bodies, according to a paper published in July 2017 in the American Journal of Obstetrics and Gynecology. This is a normal, natural process that helps the birth canal (vagina) to open during the birthing process. Contractions, which can be a sign of real or false laborĪs you near your due date, your cervix becomes thinner and softer (called effacing).The baby "dropping", or moving lower in your abdomen.Tender breasts, which may leak a watery pre-milk called colostrum (kuh-LOSS-struhm).Some new body changes you might notice in the third trimester include: Don't worry, your baby is fine and these problems will lessen once you give birth. This is because the baby is getting bigger and it is putting more pressure on your organs. Plus, many women find breathing difficult and notice they have to go to the bathroom even more often. You're in the home stretch! Some of the same discomforts you had in your second trimester will continue. (If you notice any sudden or extreme swelling or if you gain a lot of weight really quickly, call your doctor right away. Swelling of the ankles, fingers, and face.These can be signs of a serious liver problem.) (Call your doctor if you have nausea, loss of appetite, vomiting, jaundice or fatigue combined with itching. Itching on the abdomen, palms, and soles of the feet.Numb or tingling hands, called carpal tunnel syndrome.This is sometimes called the mask of pregnancy. ![]() Patches often match on both sides of the face. Patches of darker skin, usually over the cheeks, forehead, nose, or upper lip.A line on the skin running from belly button to pubic hairline.Darkening of the skin around your nipples.Stretch marks on your abdomen, breasts, thighs, or buttocks.Body aches, such as back, abdomen, groin, or thigh pain.And before this trimester is over, you will feel your baby beginning to move!Īs your body changes to make room for your growing baby, you may have: Your abdomen will expand as the baby continues to grow. But other new, more noticeable changes to your body are now happening. You might notice that symptoms like nausea and fatigue are going away. But it is just as important to stay informed about your pregnancy during these months. Most women find the second trimester of pregnancy easier than the first. Just as each woman is different, so is each pregnancy. And some women might not feel any discomfort at all! If you have been pregnant before, you might feel differently this time around. Fortunately, most of these discomforts will go away as your pregnancy progresses. Constipation (trouble having bowel movements)Īs your body changes, you might need to make changes to your daily routine, such as going to bed earlier or eating frequent, small meals.Upset stomach with or without throwing up (morning sickness).Your period stopping is a clear sign that you are pregnant. These changes can trigger symptoms even in the very first weeks of pregnancy. Hormonal changes affect almost every organ system in your body. During the first trimester your body undergoes many changes.
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