I forgot to mention something else,
there was this one time where he started to put on the condom but then realised it was inside out, so he took it off and turned it round.
So the outside had already touched the top of his penis.
Is there any chance that sperm could already be present there, and therefore was then on the outside of the condom???
Thats the only way I can think that I could be pregnant.
Does stress really affect it??
What else affects how regular you are?