My boyfriend and I were having sex without a condom, and after he pulled out, he ejaculated a little bit (he was holding back more ejaculation) I checked my vagina to make sure no male ejaculation was inside, and I pulled out a thick, white substance. My boyfriend swore he did not ejaculate inside of me, and the stuff I pulled out was not the same consistency as semen. Later, I found more of the white substance close to the thing in my vagina that makes the discharge. Could this substance be female discharge?