weird bump

alright so yesterday my boyfriend and i were messing around. we're both virgins, and we didn't have sex, because we've talked about that and we're not quite ready for that, we did decide that we're ready for other intimate things however. anyways, he fingered me, and earlier i noticed a small ball like bump on my vagina, kinda by the clit, does anyone know what could've happened/experienced this/ know if i should see a doc?