Essential Oils

I would love some help as I cannot find a simple yes or no answer. I am 10 weeks pregnant and am having troubles sleeping at night.

I thought I would try essential oils, like lavender in my electric burner. Obviously I would dilute it with coconut oil.

But I can't find anywhere where it plainly states that lavender is safe to use in your first trimester. I know chamomile is a cautious oil to use further in pregnancy.

I just need some relief and help please!!!