Cant sleep

I’m 6 weeks pregnant and I have so many issues trying to get a good night sleep. I can be absolutely exhausted and I can’t get a good sleep in. I used to fall asleep in like 5 minutes now it takes me 30. And if I wake up once it takes another 30 minutes to an hour to sleep again. I also wake up every couple hours now when I used to sleep through the night. Can someone please give me some advice as I’m trying to get some sleep now before the baby comes and I can’t sleep at all. 😞