hello, ive had sex once and it was 2 months ago. we didnt use a condom and he said didnt cum because we stopped in the middle of it and i wouldve been able to feel it if he did. i took my birth control pill before i went to his house though. that month i had my period for one day and then the next month i didnt get it at all. i read that its normal to not get your period sometimes when youre on the pill. and latley ive been feeling like im getting period cramps like i used to feel before i went on the pill the week before my periods. i dont know if im pregnant or if im just not getting my period because of birth control. does this sound normal