I think it’s over

My boyfriend of 12 years and I have a daughter together she’s 16 months I’ve been taking the mini pill cuz I have been nursing and just currently stopped two weeks ago. I also had strep last month and the doctors said the antibiotics and the pill wouldn’t be an issuer and that it would conflict with each other. My periods aren’t normal yet so when I was late I dint think much of it so I took a test thinking nothing of it until I didn’t and I just found out I’m pregnant yesterday. He’s always made it clear he didn’t want anymore kids. So I told him and he now says it’s over I lied to him and did this on purpose. I’m so hurt. And I hope he doesn’t mean it and comes around to it cuz it’s happened. He’s such a good dad and I don’t want to split up. I dont know what I’m gonna do if it’s over. I’m so scared about having to start over with dating and everything. But most of all I don’t want to “share” my babies she’s literally my everything and i dont know what I’m gonna do if I have to be without her.

Any words of help?