Sleep Aides that are safe??

Louesa

I'll be 9 weeks tomorrow, and before finding out I was pregnant took Trazadone for insomnia. I can no longer take it, and have had a HORRIBLE time sleeping. I can fall asleep perfectly fine, but cannot stay asleep. I toss and turn constantly, and a lot of time when I wake up my brain is so stimulated I can't fall back asleep or it takes me a long time to. I have tried melatonin and it doesn't do much for me. someone please help!