Need help

I’m currently in my second trimester and I’m depressed. This will be my second baby. This one was unexpected, I was on birth control and I took plan b. The other party has told me multiple times that they’re not ready for kids. I’m getting close to 20 weeks and I’m not sure what to do. I’m scared to tell them because I know they’ll say “I trapped them,” this that and the other. I also don’t want to be in that persons life just because we have a child. I’m considering adoption. I have a child already from a previous marriage, and I already know what it feels like to be with someone because they have your kid. Just looking for advice .. please no judgment