I have been sleeping with a man recently without condoms (I'm on the pill). We've had sex several times without one and I've given him oral sex a couple of times too without one. I just noticed a bump on my lower lip that doesn't hurt and hasn't come to a head. I don't have any bumps on my vagina or anywhere in the area so I'm wondering if this is just a pimple on my lip? I've had them on the edge before but never right on my lip. Please help.