I wiped 'down there' on a towel which was used previously by someone else and may have had sperm on it. What are the chances of becoming
pregnant from this, I am not on any birth control and I am a virgin. I am 17 and only started my periods a few months ago, I had my third period but am a few days late for my fourth period, could this just be due to irregular periods as I haven't long started? If I am pregnant my life will be ruined, I am worried about it so would appreciate some advice