How does pregnancy happen?
As you probably know, becoming pregnant has a lot to do with your monthly menstrual cycle or period. If you want to get the low-down on what happens when you get pregnant, you’ll need to know a little about your ovaries. An ovary is a part of the female reproductive system, which means that it plays a really important role in the process of becoming pregnant.
You have two ovaries, one on each side of the body. Each month a group of eggs, or ova, develops inside the ovaries. Around two weeks before your next period, one egg is released from a part of the ovary called a follicle. At that point, the egg begins its journey down the fallopian tubes towards the uterus (also known as the womb).
This single egg stays in one of the fallopian tubes for around 12-24 hours — this is where the egg can become fertilized by a single sperm. Sperm is part of the semen that spurts from a man’s penis during ejaculation (whether at the end of sex or otherwise). You might know semen as come or cum. Semen is produced in the male testicles. Believe it or not, the semen of an average man contains 15-200 million sperm!