I had protected sex on the 11 I don't get my period until the 26 , but it came on the 21 . I usually stay on my period for 4 days , this period was only 3 days I was spotting after I had a brown discharge . Today I had these burbs that smells like eggs , I was told that it's sulfur burbs witch causes vomiting , I just through up . Could I be pregnant?