Hey what's the condition now...? M in the same situation and it's freaking me out too
It is very rare to get pregnant during menstruation. In the standard 28 day cycle ovulation occurs about cycle day 14 and sperm can last inside for no more than 5 days.
Ejaculation outside with no penetration before or after will also not result in pregnancy. If semen gets between the lips, there would be more concern.