Wrong reasons? Help

I feel extremely guilty and thought that I’d never be in this situation. I am not opposed to abortion and have always been pro choice.

My fiancé who I’ve been with for 8 years who I have a 2.5 year old son with, and I have come to the decision most likely to have an abortion. This originally started as a planned pregnancy but his mental health rapidly declined due to a series of traumatic events.

I am now about 20-22 weeks. I have an appointment scheduled in a few days but can’t help but feel guilty. He says he won’t be able to handle the stress (severe anxiety, depression, and ptsd). I feel very mislead, because when we first found out he was excited, then it wasn’t talked about at all for months until things got really bad and then we both thought it would be best not to have the baby, because it would be too overwhelming for him. He provides most of the care to our son because I work (he’s disabled), and I physically cannot because of an injury that makes it so I can’t lift anything.

Another issue I’m struggling with is the procedure itself. I was told on the phone that they have to stick a needle in my stomach into the baby to stop it’s heart and then the next day I come back for the actual procedure. What is that like??? I have an extreme phobia of needles.

Am I going to regret this?

Is this going to change my relationship in a negative way?