I´m 19 years old and I have never been sick as i know of, no broken bones or anything just normal flu as it goes, well I´m on the birth control pill and i take it everyday, but i forgot it for 2 days and shortly after i begin to feel sick, nausea and i´m not a person that get sick like that for no reason I never get sick like that except when I have a fever, and i checked if I fever and i had none. I took a pregnancy test a few days before i begin to feel sick but it came out negative, and its been almost 2 weeks since i took it. I read about that you could take a blood test but I just wanted to ask you, if i should be worried about being pregnant or not? I have thought it before and often took test and they came all negative, but i´m worried now more than ever because I have been vomiting four times now on only one day.