Wants to lose the condoms

Meg
So I've been on the pill for almost a year and my boyfriend will still wear a condom because I'm terrified of getting pregnant. There are times he can't get off because of the condom and wants to take it off but I say no because of the off chance I'd get pregnant. We use ultra thin with spermicide and we've used the ultra sensitive. Both of us had a reaction to th ultra sensitive. 
Am I being ridiculous to not wanting to have sex without a condom?