Abortion at 17 weeks pregnant?am I messed up in the head?

So I’m 17 and 17 weeks pregnant. The dad ghosted me and I’m just really feeling like this is all too much for me to handle. I’ve been babysitting a five week old and it is not what I expected. It’s not fun at all and is so draining. Idk if I would feel different if it was my own baby though. I haven’t thought about abortion until now. Everything just started piling up in my mind at once. My family is really Christian and wouldn’t let me get an abortion Bc it’s against their religion. I don’t know what to do anymore🤦‍♀️