Dating someone else....

So ladies I have a question for the single moms to be out here, if you and your child father isn't together is it right to talk or date anyone else while your pregnant by your child's father? I have my moments when I feel so lonely and I want a man to be by me , and get that love and attention from someone. But me and my child's father isn't together we will just be co parenting . So I'm saying would I be wrong dating someone else while I'm pregnant?