I'm having difficulties while sleeping at night.... Getting up frequently to change sides... Most of the time waking with sleeping on my back.... What to do?

Very normal. Try to sleep in your sides. It is ok if for some minutes you lie on your back. The Right Sleeping Position During Pregnancy - Take This Advice to Get Some Sleep!

Sleeping Positions During Pregnancy To Help Reduce The Discomfort

I used to keep a pillow between my legs . That helped me Neha has shared some lovely articles

Thanks a lot Neha & Priya :)

Sleeping on your back not advisable dear. Turn sides no issues, left is preferable. Have a pregnancy pillow it helps a lot

Please try avoiding sleeping on your back...gradually you will get used to it though

It's normal..
Try sleeping on left side...