need information about tablets pack called gynera

i had sex for the first time , the guy pulled his thing out the moment he started cumming so he says nothing went in . i was done with my period 2 days before having sex , im worried about gettin pregnant , he peed before we started so the old sperms were washed away and thrown out so i guess what came out while we doing it was pre cum .

well i bought Gynera , birth control pills
21 tablets in it and i just need to know one thing if anyone could help me
how many pills should i take ? knowing that i will not have sex again
or lets say , i will not have unprotected sex again so i sure dont need all these tablets in the pack , so how many pills should i take to prevent pregnancy for this time even if it was only 1% chance of pregnancy to occur . please help .

You should take one pill every day about the same time starting the first day of your period or as soon as you can. I have to take mine with a little food or it makes me kind of nauseous. The highest rate of fertility I understand is about a week and a half after your period, so your probably fine. As far as I know, peeing before sex doesn't do anything to prevent pregnancy. If you're going to stay active I recommend you use condoms and talk to a gynecologist about the risks of pregnancy and std's.

have a question here.. is it safe to have sex on the day the last tablet is to be taken?