Fear of being pregnant

I know this is super stupid to even be asking,

But I am ten months post partum, I had a chemical last month and was devastated when I found out I was pregnant.

I don’t want anymore children, and we had sex ONCE that month.

This month we had sex a few times, all with a condom, I know I was ovulating one of the times we had sex but we had a condom on.

A few days prior he rubbed his dick on my clit and I am stupidly scared as hell that I could get pregnant again. I know condoms are effective when used properly, but I am still scared and imagining symptoms.

I should be okay right??

I’m going to get the copper IUD on April 12th