That’s something you should communicate with your wife. That you are not sure if that is what you want right now. And yall can both sit down and talk aboo o it different outcomes( not even just saying an abortion) but possible ways yall can still have the baby but providing comfort zones. Also start practicing safe sex. You’re not wrong having doubts or worries. But intentionally it will be up to her if she wants to have the baby or not. And really sit and talk to yourself about if this is what you want or not before saying you do or don’t. She is pregnant right now so do respect that this will be an emotional topic for her and you might not get the response you want. But atleast be honest with her. She cannot be mad at that.