I was at my boyfriends house yesterday and according to my period tracker I was ovulating that day. We didn't have sex. However, while we were both wearing underwear and thin trousers we dry humped. His penis felt really close to my vagina like he literally had the tip of it in me over clothes (kinda). I felt damp afterwards and he had wet patches on his boxers. Do I have a chance of pregnancy? Also he didn't ejaculate he just made Precm which I've researched that I study found out that some men have sperm in their Precm and some don't and it is not due to left over sperm from the last ejaculation (but I don't know if this is true)