Dec. 22 2012 is the first day of my last period , me & my boyfriend had sex 1.2.13 1.3.13 & 1.6.13 he nutted in me during those times...i took a prego test 1.8.13 . it came back as negative. & i usually get my monthly at the end of the month. & as of 1.11.13 i started bleeding ; light pinkish to bright red. is this implantation? could i be pregnant?
---- also symptoms include mood swings , headaches , tiredness/ loss of energy .