Inside the Womb: A Miraculous Journey

In addition to all the fun, your bodies are building up tension that you hope will end in orgasm. Having an orgasm also has an important biological function. In men, orgasm propels sperm-rich semen into the vagina and up towards the cervix at roughly 10 miles per hour. 

The force of ejaculation gives the sperm a good head start on their way to the egg. A woman doesn't need to orgasm for conception to happen. Gentle uterine contractions can help the sperm along, but these happen without you having an orgasm. 

Many couples wonder if a particular sex position is best for conceiving. No one knows for sure. The most important thing about sex is that you're both having a good time and you're doing it often enough. For you to conceive, live sperm needs to be in your reproductive tract during ovulation. 

Not all women ovulate during the middle of their cycle or at the same time in their cycle every month. To improve your chances of conception, aim to have sex every other day or so throughout your cycle.

About video: How much do we really know about what goes on inside the womb while a fetus grows from an embryo to a full sized baby?