should I ask this girl out?

So i know this girl and think she likes me.But its hard to tell sense i dont know if she is being friendly or flirtly becuase there is a fine line there.So shows the usallys signs that she does. So anyways she knows i think she is cute and she knows i had a crush on her back when we where in school..Anywho now she is having a kid, and dont worry she still looks hot. Her ex who did this to her is low beat pices of ****. Anywho when we text and stuff she puts smily faces when she says night or bye.So if i asked her do you think she'll say yes Or should I keep talking to her and wait to see what happens.