my boyfriend and i had protected sex with a condom 1/2 at four o clock everything was going along fine and then he came and when he pulled out we notice that the condom had torn like completely the whole condom was ripped, withen an hour we went to meijer and bought a plan b pill and i took it. i got a pregnancy test and i got anixious and i took it 1/5 and it came out negative i asked my friend if i should take another one right before my period which should be around 1/17 but last month my period was irrgeular so i was just guessing when my last cycle was, could i be pregnant? even though when i took the last pregancy test it cam out negative? please answer soon....