I had sex on the last day of my period, 4/1/14 using a condom for most of it, but some of the encounter was unprotected. He pulled out well before he finished. I've had what I thought was a tummy bug since tuesday, 14/1/14. This includes diarrhea for one day and then extreme nausea and stomach cramps ever since that don't seem to be getting any better. I am just really concerned these could be pregnancy symptoms, would they arise 10 days after sex? My period is not due for another week and a half. Been in my bed for three days with this, so any help would be greatly appreciated.