Birth control

I started an oral contraceptive 6 weeks PP and it has given me awful insomnia all of a sudden. I've been on it for 5 weeks. That's the only change I've had. My baby sleeps through the night, my whole household does, but me and I am completely miserable because I'm so tired but cannot sleep. I don't want an IUD so we're thinking about just doing condoms only. I'm mid 30's and we have struggled with fertility in the past. Has anybody had issues with insomnia after taking the pill???