HI,

My friend had sex yesterday on 12 march but during his sex condom was broken after that he was being confused whether sperm was left in her vagina or not and he is not sure about it.

1). how will he can solve his confusion?
2). after 26 hours of sex her gf taken i pill even even she don't know whether she is pregnant or not. is there may be any harmful effect if i pill taken not sure about pregnancy?
3) when pregnancy test should be done after taking i pill ?

please help she is worrying more.