I need help please

Back in November I had a very bad pregnancy scare which led me to some very scary thoughts. Since then I started the pill in December and we cut out vaginal sex, oral, and touching each other‘s genitals. But now I’m being overly overly paranoid. Like I have to double check my underwear or shorts before I put them on because I fear somehow there’s gonna be cum in it and if I touch my underwear near the vagina part I won’t wear them because I fear I had cum on my finger or hands even though my hands are completely dry. I also wear layers of pants, a tampon and pad whenever my bf and I hang out to make sure just Incase nothing leaks. I also wash my underwear in the washing machine repeatedly to make sure there is nothing on them and it’s so frustrating. I know I’m being safe but I still overthink that i can get pregnant even theres it’s basically impossible. I have a therapist and am talking to her about it so I hope something helps.