advice/ help abortion

hi reddit, i’m going to make a long story short here. so I am (20)F and he is (30)M. i met this guy from my work but didn’t talk to him until the past few months bc he was married. towards the end of their marriage, he started gifting my lots of things and money, i never asked for it. but of course i liked it. well one thing turned into another and we ended up sleeping together. as i am not on birth control, i asked to him to buy a plan b and he said do not worry abt it i cant get anyone pregnant. then i asked if he has a vasectomy and he said yes. so we continued to sleep together and not even a month later i turned up pregnant. i had not slept with anybody else since my last period so i know for sure it was him. I made the mistake by telling him, but i was young and scared i didn’t know what to do. I immediately knew i needed to get an abortion because this is not the man i want to have a baby with and i have a lot more going for me. and he won’t let me get one, he has been delaying it and telling me i will regret it for the rest of my life and it’s not fair to him if i get one. he said if i don’t tell my parents he will. oh and the best part he said he will commit su%cide if i get an abortion. so anyways this has been going on for 2 months now and i still have not got an abortion yet bit have one planned for next week. i just am so miserable with myself im not even the same person anymore. i feel like he is manipulating me and taking advantage of me, i am unclear if he did this on purpose, but it sure seems like im getting groomed. i am just very scared for my mental health and myself from this guy. as i said im not even the same person and just feel like im trapped and controlled. anyways, im just looking for advice here as if am i going crazy? or is this a horrible situation? should i go through with the abortion? psa, there’s probably a few missed details on here plz looking for advice. thank you.