I have had unprotected sex, a week after the last day of periods and my husband came inside me. I couldn't take the morning after pill and havent been on the pill. What are the chances that I could get pregnant? Also, I am take a fat burner pill daily and friends say I should have pine apple to avoid pregnancy. I don't want a baby right now but, will that damage the baby in case I get pregnant? How soon can I find out? It has been 3 days now.