Sleep deprived

Okay I have had many problems during this pregnancy but sleeping has not been one of them until this week. I’ll be SUPER sleepy before I get in bed but the moment I lay down I can’t get to sleep. Usually this wouldn’t be that big of a deal cause I had a bit of insomnia before I was pregnant BUT in the last three nights I’ve had a total of 8 hours of sleep. Is there ANYTHING I should try? I don’t drink caffeine often and I’ve stopped being on my phone/watching tv before I go to bed and nothings seeming to help 😩I don’t wanna call my doctor yet cause I’m already on sooooo many meds. So any advice on what to do would be greatly appreciated