So my boyfriend and I were laying in bed and we both had just our underwear on. We were watching tv so his penis was resting against my covered butt/vulva area, and he didn’t ejaculate, but my underwear was wet (from my vaginal lubrication). So, say he pre-ejaculated or even ejaculated with his boxers on. Is there a chance that I could get pregnant with underwear on? Does it matter on the type of clothing material? Can the two bodily fluids mix if the clothes are saturated enough?