The problem is these 'pregnancy' apps don't exactly have a 100% success rate.
A woman's menstrual cycle isn't something you can be completely certain about either. Not to mention the fact sperm can survive for several days...
Eh, just use a condom.
A woman's menstrual cycle isn't something you can be completely certain about either. Not to mention the fact sperm can survive for several days...
Eh, just use a condom.