My bf rubbed penis over my vagina without ejaculating he covered his penis with a balloon . I missed my period of one month so I took urine pregnancy test but it was negative. Nedlxt month i got periods but after that also I took 2 test all negative. It's been one month now and I'm not getting any of the symptoms of pregnancy and all the test were also negative and i got my periods also. What all these things means does rubbing penis is an unsafe means to do does it causes pregnancy ??? Help pls