How Do I Tell Him I’m Pregnant?

So I dated his guy for a year a couple of months back and we broke up about two months but since then I found out that I was pregnant it's been a month since I've known this and I wanted to tell him immediately but I'm waiting until after the first trimester to. We didn't break up on good terms. I kinda just blurted it out when in the middle of the argument and he said fine and walked out and we haven't talked since then. We broke up because I felt like he was stalking me almost every day he would text me asking who I was with or where or was and I thought it was cute when he came to pick me up however it started getting me never after he asked about a photo I got tagged in by a guy. Keep in mind the guy was my half-sister's cousin I told him that and laughed it off but he didn't believe any of it so we got into a fight after he accused me of cheating which I'm not. I grew up with the guy in the photo we've known each other since we were 10 and are like siblings so when he asked me to cut him off I got really mad and he stated that we weren't even blood-related and blah blah blah. So I was feeling a little sick and dizzy before that but brushed it off as a cold or something I ate however it's been a while. I can raise the baby myself and my family will help me because I'm still in Uni only my mom and sisters know. My aunts and uncles and cousins would just get mad and go over to his house to blurt it out. I don't need his help with raising it, he even said he didn't want kids and would rather just grow old with his soulmate himself so I think it would be a waste of time, He's not bad with kids he just doesn't want any. So should I tell him because he deserves to know or not He's probably gonna give me shit about the whole tagged-in photo thing and I just can't deal with that right now I'm already stressing over this I don't need anger being added to the mix?

Updates
1 y
Thanks for all the opinions and suggestions. He said it wasn't his at first I predicted that and already scripted a calm response @caitjet. And he asked to abort, I told him it wouldn't be something he had to take care of and I'll keep it, he doesn't have to be there and I won't bother him, It went silent after that my brother was outside waiting for me so I left after it seemed like he had nothing else to say. I have an appointment tomorrow which I told him about but maybe that's just me hoping
Updates
1 y
I lost it, guess it worked out for the best, he didn't want it anyways. And i get to focus on skl i was ginna take a year off guess i dont need to anymore. I dont know what i dud. I read the books i followed the doctor's orders. I wasn't stressed about anything serious just him not showing up since last month. i'll be fine
How Do I Tell Him I’m Pregnant?
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