Me and my girl had sex and while I was inside of her I tried to stop myself from cumming but a little bit came out, so I instantly pulled out and came but I know for certain I came a little.  I had peed before but regardless I am not sure if it was precum, however I was able to stop it until I pulled out so it could have been.  My girlfriend just came off of her period two days ago and she took a pill last night and is taking another tonight.  Can she get pregnant and if so should I get emergency conception?  Thank you