What to Expect During Week 4 of Your Pregnancy

Common Pregnancy Symptoms

Pregnancy Week 4
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During the fourth week of your pregnancy, your body is figuring out what is up. By now, a urine pregnancy test will likely be positive. Urine tests measure the amount of the pregnancy hormone, human chorionic gonadotropin (hCG), in your urine. If it has been four weeks since conception, you should have enough hCG in your urine to get a positive result. If you think you might be pregnant but urine tests are inconclusive, you can ask your doctor for a blood test which may be more sensitive to any hCG you might be producing.

At this point in your pregnancy, you may begin to feel tired, urinate more frequently, experience mood swings, and possibly have tender or swollen breasts, all of which are common signs of pregnancy.

Be sure to avoid environmental hazards as well as alcohol, cigarettes, secondhand smoke, and any other drugs. The first trimester is the most critical time for your baby's development. You will also want to adopt healthy eating habits and a pregnancy exercise program to maintain you and your baby's health. 

Your Baby at Four Weeks 

The chorionic villi have begun forming by the end of this week. Towards the end of this week and into next week, a transvaginal ultrasound can show a gestational sac. The yolk sac that helps feed your baby until the placenta is fully functional will appear as well.

Supporting Your Partner Early in Pregnancy

Do you have a plan as to how you'll tell your partner you are pregnant?

Maybe you will take the test together, or perhaps you took it by yourself and now want to share the news. Some moms choose to have their partner go and read the results. Be sure you've reviewed the instructions and know how to properly read the test results. The words you say will be remembered forever.

One thing that can be difficult to keep in perspective is that your partner is becoming a parent as well. Sometimes this can get lost in the fray. If your partner is pregnant, give yourself a break if parenthood feels overwhelming at times. Talk to your partner and let her know how you're feeling.

If You Are Having Twins

If you are having twins, your hCG levels are likely to be more elevated than they would be if you were just having one child. This can often be the first sign that you have more than one on the way. According to one study, at about 18 days of conception, (or 32 days since your last period) the average hCG for a singleton gestation is 450 and for a twin gestation, it's 1500. The only way to confirm you are having twins, however, is through an ultrasound. 

If you find out you are having twins, it's natural to feel shocked or overwhelmed. Remember to ease into the information, even if it means sitting on it for a few days. You might be delighted, scared, or even sad. It doesn't mean that you aren't happy about being pregnant, but a twin pregnancy carries added risks and testing and can be a lot to deal with, so be easy on yourself.