I really would like to know if I am Pregnant?My boyfriend thinks I am but Im Very Confused!My period was November 30-5th...We had Sex December 14th and he ejaculated inside me...My period was suppose to be on the 27 or 28 the of December but I didn't come on until Jan 5th!My breast were extremely sore and I went from a B Cup to a D Cup and this Week I started to have Slight Nausea and Headaches!I've been Extremely tired & The worst mood swings!!I took a Pregnancy test & It was Negative!!!Are all these Symptoms just from my period or Am I Pregnant?!