Hi. My girlfriend and i had intercourse about 1 1/2 weeks ago. I bought her plan b because she was very worried. So i am very aware of all side effects but she started experiencing these side effects 3 days ago and is still going through. Im extremely worried and havent been able to sleep because she is constanly feeling nauseous, tummy pains, headaches, and tiredness. Im scared she might be allergic to the pill or something. I just want to know that she is going to be ok and hoping nothing too serious is wrong... How long do these side effects last? What can i do to help her or is there anyway to treat this?(The pill did its job by the way)