Person keeps messaging me

So I had this person message me on here out the blue. Conversation started off off asking me about interracial couples and how I felt. By off I mean like that’s what they started with. Then it got a lot weirder when they started asking am I dripping wet etc since we are both pregnant. I changed the subject and or reluctantly answered them but then they ask me what a bbc is. I didn’t tell them as I think it’s a creep or some guy now posting as a pregnant woman😐 at this point I’m uncomfortable and they have asked me about my vagina too many damn times. Told them today go ask someone else this mess. Also I don’t talk to women about my vagina unless it’s about ttc or something. And they just brought it up every day. Anyone get stuff like this?

Update: I told them they were a piece of shit for doing all that and I knew they wasn’t a woman and they blocked me 😂💁🏽‍♀️ yall watch out for jj!