Help??

Maria
So I recently had sex last night and I guess I woke up with my labia minora swollen from my right side as if I was bitten by something. I read about it and it has to do with a varicose vein but I'm unsure if the sex triggered it? Is there any way to get rid of it? Or something to ease the pain? This is my first pregnancy and I have no idea how to handle this, it hurtssss 😥