Hoping I'm doing the right thing by having a baby I don't know if I'm ready

The thought of hoping your doing the right thing by having a baby is normal especially when your young I’m 18 and I have 2 boys a three year old and a one year old I thought the same thing and of course I was thinking that I wasn’t ready but then I thought to myself like I can’t get rid of something that I made trust me it’ll only get better hun I’m here always if you would like to talk