there are but they mostly hang out on the family forum as they are busy caring for their family. I saw quite a few posts there.
on this singles forum parenting isnt talked about much. But there is no reason why it shouldnt as for whatver reasons it happens. I know many single parents in the church, I think one of the saddest things is how many go there because the dad has abandoned the family. Mums too, but I seem to just know a lot more of childrens whos dads left them.