can nitrofurantoin mono which is an antiboitic affect some birth controls? becuz i read some antiboitcs decreases the effect on birth control and if u take an antiboitic and have sex you more likely could become pregnant. i read some thing about that but i dont know if any antiboitics could do it or some of them so i was just curoius if it is safe or not??? thats my question
today i had a sex with my gf. and i enter my penis inside her vagina bt sperms doesn't come. can she get pregnant.