Dr. Varsha Jain of the University of Edinburgh is a space gynecologist. This means that she is a gynecologist who specializes in medical care for astronauts. Science Focus, an online magazine that is part of BBC News, interviewed her about what we humans can expect when and if humans begin procreating in space.
Menstruation among female astronauts is fairly normal, so, hypothetically, fertilization should be possible. It's hypothetical because we know of no attempts to complete the process in space. That said, pregnancy is very risky because of the high levels of background radiation that astronauts experience. An unborn child's DNA is especially vulnerable to radiation damage.* Gravitational load when leaving or entering a planet's gravity well can lead to serious complications. Dr. Vain advises that we humans conduct more research about how to make interplanetary pregnancy safer.
-via Dave Barry | Image: Dung_Dang
*Translation: super powers.