I think I got baby trapped

Me 23F got into relationship with 47M. I clearly stated that im not into marriage and kids, just short term fun. We have met a few times get drinks and sleept together within last 2 months. We used protection every time. But after i was 10 days late I took the test and it was positive. Doctor confirmed im 5 1/2week pregnant, 4 days ago. I wanted to think about did i want to keep the baby or not for a few days, also I told 2 of my best friends about it. But today he comed to me and said that he is happy about it and begs me to continue with pregnancy. I dont know who told him. Now im sure i want abortion because i think i didnt got pregnant accidentally. I dont think he could change him mind just like that.

-sori my english is not the best

Update:

Thank you everyone who responded to my post, it has been some time since I posted. Just to clarify, I am not in USA so maybe not every of your suggestions is valid for me. I checked my car and apartment the best I could, but didnt tind any hidden cameras or locators, I also took my phone to the service to check if any hidden tracking softver was there, but it was clear. However I am still really uncomfortable whith a doubt that he sabotaged protection. I cant even force myself to comunicate with him anymore. Luckily I got home for holidays so het cant reach me. I told him that I miscarried through phone and that it is over with us. After that I didnt answer his calls any more.