Maybe baby and break up

My SO and I split up at the beginning of this month and I'm honestly terrified I'm not going to get my period and end up pregnant. He's already moved on with another woman and she's met some of his family already. I'm just so afraid I'll end up pregnant and it'll just make things worst. We already have two children together so I have to deal with him anyways. I wanted another baby before we split up but if it happens now, well I'd be devastated. I wouldn't get to enjoy it and it would be so hard to deal with. Of course I would keep the baby but adding another child to the mix is so heartbreaking. Fingers crossed for AF!! Also baby dust to all you who are trying to conceive!💕