First Trimester

You're probably beginning to feel different, even though you don't look pregnant. You may feel a bit low and irritable at times; this is largely due to the changing levels of hormones in your body. You may sometimes have mixed feelings about bein...

During this week, your baby starts to make tiny movements. You won't be aware of this, but it's exciting to think about. On the downside, you could be in the throes of nausea and sickness. However, many women find that the nausea starts to lessen...

Your baby todayThis is a microscope view of the amniotic cavity with the cells that will become the baby in a close-up. These cells will repeatedly divide and multiply, becoming more and more specialized at each stage of their development. ...

This is your baby's last week as an embryo; next week she'll be known as a fetus. Her major organs are in place, although by no means in full working order. There's a long way to go yet and her body systems will continue to mature for the rest of...

Your baby is now unmistakeably human and is undergoing many sophisticated changes, such as development of the sense organs. To mark his new status, he's now called a fetus. If pregnancy hasn't seemed quite real to you so far, it soon will. It's t...

Yawning, arms and legs waving-your baby is on the go and you can actually see it happening. Most women have their first scan this week, and it's the big thrill of the first trimester. Up until now, you may have preferred to keep your pregnancy a ...

Your baby todayThis is a view of the right side of an embryo with the fronds of the chorionic villi in the background. The curled shape of the embryo is clearly demonstrated. The umbilical cord attachment to the early placenta can just be seen. ...

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Toward the end of this week, one of the eggs in your ovaries is likely to have reached full maturity. Ovulation occurs as the egg, under the influence of hormones, bursts out of its follicle. If it meets a sperm, you may become pregnant. Now is t...

If you ovulated and the egg met a sperm, amazing things will happen fast. It takes just three days from fertilization for a single egg to divide into a ball of 58 cells. By the end of the week, this ball, called the blastocyst, will have reached ...

The embryo-to-be, now securely implanted in the lining of your uterus, is starting to develop. Although you could do a home pregnancy test this week, you may end up disappointed or uncertain because at this stage a definite result is unlikely. It...

What's happening insideThe ovary can be seen here at the end of the fallopian tube. At around this time of the menstrual cycle, a follicle at the surface of the ovary releases an egg, which is swept down the tube by clearly visible fingerlike pro...

When your pregnancy is confirmed, it's natural to experience a mixed bag of emotions-excitement, disbelief, joy, and anxiety. Everything is about to change forever for you and your partner. Give yourselves time to take in the big news. You may no...

Not all women start to feel pregnant this early on. Some experience a twinge of nausea or breast tenderness, while others notice no changes. Of course, it's natural to long for "proof" that your pregnancy is progressing, even if that happens to b...

Getting in shape now will stand you in good stead as your pregnancy continues. Keeping active is important, so work up a daily exercise routine to strengthen your muscles and reduce fatigue-but listen to your body and don't exhaust yourself. This...

Your baby todayThis image shows just how curled up the embryo is at this stage. The head end of the embryo is on the right. The embryo now has 22 pairs of somites (building blocks of the musculoskeletal system) running along the back. ...

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It's business as usual for your body this week. You're having a period, so you know you're not pregnant. But if you conceive during this menstrual cycle, the first day of your period will count as the first day of pregnancy. It's a good idea to r...