Ok I know that fainting is a symptom in pregnancy, but is it one to be conserned about??

On Sunday morning I was dressing in the bathroom and DP was in there doing whatever, when I told him that I was feeling a but funny, so he came over to hug me (bless him) and from this point I don't recall anything but DP says that My legs just went out from under me, so he looked and my eyes just rolled back and I was out to it, so he lowered me to the floor, where I`came to, throwing up violently.

Now I am not conserned about the throwing up part.. that is a regular thing for me lately, but I have never fainted before - so I am only guessing that that is what this was. I will be seeing my OB tomorrow morning, so I will mention it to him, but I thought I would ask you ladies what you thought...