Are you working from home or SAHM? Try awake early, go for a light walk like 15-20mins ( if u have no more more morning sickness etc ) , read books, try occupy yourself in the day. Also Try not to overthink a lot. 2nd trim onwards can do some light stretching at home or if u keen, can sign up for prenatal yoga class /via online? Or have a cup of Warm milk & find some relaxing music before sleep.
Try to ditch your distractions (eg. Smartphone, computer, etc) at least half an hour before sleep. Take some time to perform deep breaths to help your body relax. If you’re interested in trying out foods to help with sleep, milk is one thing to try, or even oats before sleeping.