Im 18 and ive been taking birth control for about a month and a half now. And just a little over a week ago me and my bf had unprotected sex, and around the time we had the unprotected sex I forgot to take my pill a couple days and took them at a later time. And 3 or 4 days ago ive started to feel very sick to my stomach all day long, ive throw up a coupletimes. Extreally bad cramps all day. Muscle pains, head aches. And now ive started spotting, it dark brown in color. Ive had a couple people say that I was pregnant, but I went to the hospital and they never said anything about being pregnant, they said a gas problem, but did a urine test. So I have to wait for the results but its driving me crazy waiting. Any feedback would really help me.