Another pregnancy question!?

Me and my boyfriend last had in early April 2009. I think it was around my fertile days, I am not quite sure. I had a period on Sunday, April 26 around 12 or 1 o'clock but it was unusually different. It was lighter than normal. The second day was more darker but I was still kinda worried about it. After a while I just shrugged it off. The following week my mom called me early in the morning telling me she dreamed of fish (for those who may not know, it's kinda like a old wives tale or something). (My uncle dreamed of fish and then found out that his daughter was having another baby.) I shrugged that off too until today when I woke up feeling a little queasy. My concentration level and energy level have been plummeting also. Can anyone please help me figure out what is going on. The last period I had lasted 7 days (April 26, 2009 - May 2, 2009). That's why I am a little confused/scared. Oh...we also didn't use protection. Thanks in advance!!