I didn't have sex for a year and 3months,then now in October I started having unprotected sex from the 4th till the 16th.Just before the 16th I noticed that my breast are swollen but not sore,than on the 20th I got my period but it is lighter than my normal period.I am a heavy bleeder and get bad cramps the first 2days of my periods,but this time I did not have any cramps nor did I bleed heavly.. I want to know if I could be pregnant or what?

