Backache during second trimester

try sleeping on ur left, daily walk for atleast 20-30 mins, do some exercises, keep urself active and request ur husband to do back and feet massage before u sleep. it will help till the last trimister

https://sg.theasianparent.com/how-to-sleep-during-pregnancy-to-reduce-lower-back-and-hip-pain

I use a pregnancy pillow