Insomnia?

Anyone else have bad insomnia right now in the second trimester? I CANT sleep, when I finally do it’s 5am and I’m up at 9 with my son. If my fiancé is off I’ll sleep so late...I already talked to my dr and he didn’t seem concerned just said to take Tylenol pm. I haven’t tried that yet cause I wanted to try something natural. I do also have a panic disorder and I know that can cause insomnia too. Any advice on how to get to sleep or wind down?