By the eighth week of pregnancy, your baby will change names from an embryo to a fetus.
Cell division begins approximately 24 to 36 hours after conception. This secretes (releases) the hormones progesterone and estrogen. Throughout the third trimester, your baby will gain weight quickly, adding body fat that will help after birth.Remember, even though popular culture only mentions nine months of pregnancy, you may actually be pregnant for 10 months. Your baby's reproductive organs also develop, but the baby's gender is difficult to distinguish on ultrasound.By the end of the third month, your baby is fully formed. 2011b. Your healthcare provider will probably talk to you about your baby’s development in terms of weeks. Ultrasounds done this week may reveal your baby's sex.The patterning on your baby's scalp has begun, though the hair isn't visible yet. The other follicles stop growing at this point.The mature follicle now opens and releases the egg from the ovary. It’s important that you get at least 400mcg of folic acid each day during a pregnancy to make sure your baby’s neural tube (beginning of the baby’s brain and spine) develops correctly. You may notice that your baby is kicking more. 9500 Euclid Avenue, Cleveland, Ohio 44195 | In the illustration, you can see the mucus plug sealing your uterus and how squished your intestines are now.Your baby's physical development is complete, but he's still busy putting on fat he'll need to help regulate his body temperature in the outside world.If you're past your due date you may not be as late as you think, especially if you calculated it solely based on the day of your last period. This follicle then suppresses all the other follicles in the group.

This is completely normal and healthy.


His kidneys are working now, too. The eggs develop in small, fluid-filled cysts called follicles.

However, this isn’t always the case. After the eighth week, the baby will be called a fetus until it’s born.From the moment of conception, the hormone human chorionic gonadotrophin (hCG) will be present in your blood. In this stage, the eyelids begin to part and the eyes open.Baby responds to sounds by moving or increasing the pulse. This is called implantation.Before implantation though, the blastocyte breaks out of its protective covering. There are about 40 weeks to a typical pregnancy. This hair protects your baby and is usually shed at the end of the baby's first week of life.The baby's skin is covered with a whitish coating called vernix caseosa. Each sperm can be either an X or a Y. She's also losing most of the fine down that covered her body, along with the vernix casosa, a waxy substance that was protecting her skin until now.Your due date is very close, but though your baby looks like a newborn, he isn't quite ready for the outside world. The baby at this stage of development can move its facial muscles, yawn, and suck its thumb. You will either have a menstrual period or become pregnant.

Your baby can even suck his or her thumb, yawn, stretch and make faces.The nervous system is starting to function. OWH.

When the sperm penetrates the egg, changes occur in the protein coating of the egg to prevent other sperm from entering.At the moment of fertilization, your baby’s genetic make-up is complete, including its sex. During this trimester, your baby will change from a small grouping of cells to a fetus that is starting to have a baby’s features.As the fertilized egg grows, a water-tight sac forms around it, gradually filling with fluid. Within just a few hours after conception, the single-celled zygote begins making a journey down the fallopian tube to the uterus where it will begin the process of cell division and … It’s generally in the middle of your cycle.After ovulation, the opened (ruptured) follicle develops into a structure called the corpus luteum. Some women notice spotting (slight bleeding) during the one or two days when implantation happens. Your egg is fertilized 12 to 24 hours later if a sperm penetrates it – and this simple biological occurrence begins a series of increasingly complicated processes that leads to a new human life, if all goes well. Your baby is developing muscles and exercising them.