If I know my boyfriend and I are going to have sex I make sure I go to the toilet first. Last night I did just that, but I ended up having a little accident and at the time I didn't notice. After sex he fell asleep and I noticed there were stains on his sheets which I managed to remove. Then in the morning I noticed more stains and I threw his sheets in the wash. Luckily he didn't see any of this. It's just so embarrassing. This isn't the first time this has happened Nd this is why I avoid oral sex just in case. What can I do?