Pregnancy is the period when one or more offspring develop within a woman. Multiple pregnancy includes more than one offspring, as with twins. Pregnancy can occur by having sex or assistive reproductive technology. Birth usually occurs around 40 weeks from the start of the last menstrual cycle (LMP). It's a little over nine months, with each month averaging 31 days. When measured from fertilization it is about 38 weeks. A foetus is the offspring that develops in the first eight weeks after fertilization, then uses the term foetal until birth. Early pregnancy symptoms may include missed periods, soft breasts, nausea and vomiting, hunger and frequent urination. Pregnancy can be approved in pregnancy testing.
- Track 1-1 pregnancy care
- Track 2-2 Placenta- structure and function
- Track 3-3 Effect on drug on pregnancy
- Track 4-4 Labor and birth
- Track 5-5 Infections in pregnancy