I recently thought i was pregnant. I bleed for about 3-4 days after my period which ended two weeks ago. While bleeding I felt sharp pains on my left side which stopped abruptly after the first day I bled. I've been having some pretty bad moodswings, like I will be so mad at such a small little thing, and then I would cry my eyes out. I was nauseous for about a couple of days. No back pain at all. I did throw up on my boyfriend's dick when I was giving him head, so embarrassed. I took a test, it read negative