~ Pregnancy Week 4 ~ The cells making up the ovum are beginning to differentiate and specialize in areas of development. Some cells will make up the embryo; others the amniotic sac and placenta etc. The ovum, which has been floating around in your uterus, will implant into the wall of the uterus. Now comes an exciting time of rapid growth! The amniotic sac, amniotic cavity and yolk sac are developing. The placenta is beginning to form now too. Advice for Mom Many women do not experience any symptoms this early. But you may start experiencing some early symptoms of pregnancy such as: Fatigue and tiredness Frequent Urination Nausea vomiting - Morning Sickness Heartburn Indigestion Flatulence bloating Craving and aversions to certain foods Breast tenderness soreness, and enlargement the areola (pigmented area that surrounds the nipple) will darken If you are feeling weepy, irrational or have mood swings, take heart -- this is perfectly normal! A home pregnancy test may show positive, but you may want to wait a few days for more accurate results. Some women will wrap a positive test result up as a gift to their partner! Morning sickness could set in anytime now: you might not know you're pregnant yet, but your body sure does! To ease the symptoms of this common problem, remember to: Keep crackers, preggie-pops candy, or other bland food in your purse for frequent snacking, which may help settle your stomach Avoid nausea-triggering odors. Eat smaller meals and eat frequently throughout the day. An empty stomach often triggers nausea Take your prenatal vitamins with food or before going to bed, rather than in the morning or on an empty stomach when nausea may be worse Week 1 Week 2 Week 3 Week 4 Week 5 Week 6 Week 7 Week 8 Week 9 Week 10 Week 11 Week 12 Week 13 Week 14 Week 15 Week 16 Week 17 Week 18 Week 19 Week 20 Week 21 Week 22 Week 23 Week 24 Week 25 Week 26 Week 27 Week 28 Week 29 Week 30 Week 31 Week 32 Week 33 Week 34 Week 35 Week 36 Week 37 Week 38 Week 39 Week 40 Calendar Index Due Date Calculator ~~~~~ First published in 1987, The Pregnancy Calendar® is a perfect companion to our on-line calendar! Along the way you'll learn about: The many exciting changes taking place in your body The month-to-month development of your unborn baby The importance of prenatal care and what the experts say Warning signs during pregnancy and true vs. false labor How to calculate your expected due date. You'll also be able to use it as a: Diary of your personal thoughts and experiences Record of your prenatal appts. and other information Sourcebook to answer your questions about pregnancy Keepsake to compare with future pregnancies.