Most Helpful Guy
I think a dating site that was exclusive to single parents could do well.
But, to answer your question, of course not. The thing is that most single guys are just after sex, and with you being a single mother, they think it is safe to assume you:
1) like sex
2) probably don't have a lot of options
So, the guys who just want sex may seem to converge on you. Whereas the guys who are interested in a relationship may not be interested in raising someone else's children (unless they have some of their own - then it's "fair").