Leaked concept art has ignited Marvel fandom, depicting Robert Downey Jr. as Doctor Doom in 'Avengers: Doomsday.' The image ...

In order for pregnancy to happen, sperm needs to meet up with an egg. Pregnancy officially starts when a fertilized egg implants in the lining of the uterus. It takes up to 2-3 weeks after sex for ...

HIV is the virus that causes AIDS. It damages your immune system, making it easier for you to get sick. HIV is spread during sex, but condoms can help protect you. For more accurate abortion options, ...