Ok so im 19 , my last period was dec 6 -11 i had sex unprotectdly up until about the 17 ive been experiencing cramps moodiness constipation dizziness and my period came on early Jan 1 im still on it j been in bed sick for three days could i stil be pregnant i belive tpday is my last day.i scheduled a appt for feb 8 .what are my chances that im pregnant but somehow got my period maybe i will miss my feb period