No, I don't think so. it would have been mucous that was coming away after you had DTD. Your mebranes are surprisingly tough - I know how much work it can be to get them to break when you have them ruptured so I couldn't imagine a penis doing it, but then I could be proven wrong too kwim? It is possible that you could have some of your plug come away, and you might notice a bit of blood, or some very gunky mucous.