Pregnancy also known as ‘gestation‘ is the time during which one or more offspring develops inside the female. Pregnancy can occur due to sexual intercourse or by assisted reproductive technology. It usually lasts around 40 weeks from the last menstrual cycle to childbirth. Do you know that the embryo’s heart is formed after one month of pregnancy? The heartbeat of the foetus can be heard at this stage; with the help of a stethoscope. This is the first sign of the growing foetus. To know more facts about pregnancy, check out this video.