I do sex with my wife after 38 days of our new born baby... I use condom also she take ipill within 16 hours . after 6 dys she get menses just 2 drop... but she is not satisfide with this she have a doubut she is getting pregnent... i can say that was a safe sex ..but my question is i can make sure she is not pregnent...?... I mean just with 2 drops menses we can make sure she don't get pregnent ?