hi as male sperm can only live? they say at best 10 days and you had unprotected sex 21 days before ovulation day i think no. what your having could be from stress of worrying your pregnant could be just a missed or late period. but the best thing you can do right now is an hpt or best do a test at your doctors. but if you don't really want to get pregnant then you should be on some kind of bc but please keep away from depo shot don't even think of it. do hope this helps you. good luck
can you be pregnant if you had your period on expected date? . i had unprotected sex about a week before my expected date of my period. then i got my period on the day i was supposed to get it. the only thing is i didn't have cramps as bad as usual it lasted 4 days. now it is the next month and i am waiting for my period on the expected date. and now i'm still waiting and it is four days late from the expected date. i don't really have any symptoms of pregnancy. i use the bathroom regularly no excessive urination no tender breasts. i have bit of nausea.