Feeling very scared

[Missboo1]

Hi all
I am so frightened. I have two children but during birth with my second I had some heart problems which was a huge scare and I ended up in ITU. I did recover but was told that it could happen again although the consultant didnt say I couldn't have a third baby just that there would need to be consideration of the risk. Over the past year I'd come to a decision that my family was complete after some broodiness that passed (youngest is 3) but have unexpectedly fallen pregnant due to a contraception failure.
My husband wants to continue the pregnancy but I am so scared.
I don't want to continue this pregnancy and feel like I have come to this decision. I don't want to take a risk with my health and face leaving my two children if something goes wrong again. I'm overweight, I'm unfit and I am older now.
My husband isn't supportive of me terminating but arguably it's not him that has to deal with this.
I know it's possible I may regret either decision I make but I feel like a ticking time bomb.
Has anyone experienced this before? Has anyone regretted a termination?
There were lots of other reasons I didn't want a third but I think my health anxiety is hugely skewing my viewpoint

You look out for yourself and your existing children here, because he's not doing it. You could either pretend the abortion is a miscarriage, or you tell him your cardiologist or another relevant consultant has told you the risk is too great and has advised an abortion. Don't feel bad about lying, you do what you need to do.

Oh I'd lie in a heartbeat I'd had a miscarriage, and then I'd leave him.
Absolutely wouldn't even give him a second thought or a second of my emotional energy.
He's willing to risk your life FFS. Even the Catholic church steps back from that! And you know he'll throw an abortion back in your face every time he can.