Chances of Conceiving

My boyfriend and I aren't ttc but if by the off chance we do, we're prepared. (financially, emotionally, etc.) He pulled out yesterday and came, but didn't wipe it off and stuck it right back in. He wasn't wasting any time lol! He maybe stayed out for 5 seconds to cum then went right back in. What do you think my chances of conceiving are, considering im ovulating?