Hi! I'm 18 years old. I had sex in Nov. 2010 but I feel pregnant. I had all kinds of symptoms like sore breast, tired all the time, eating differntly don't eat like I use to, weight gain, pee a lot, feel movements all the time. I don't understand if I had sex in Nov. I would have already had my baby. Its crazy. Can you get pregnant like months after having sex? I'm so confused. I really need advice or help. Could I be pregnant?