Serious Heartburn and indigestion at night that keeps me awake

In the 11th week of pregnancy now but can't sleep every night because of serious heartburn and stomach indigestion. Already tried avoiding spicy and oily food but still feeling the heartburn and sour taste in the mouth bad at night. Furthermore, I tried sleeping propped up but it doesn't work. Will drinking probiotics drink before sleeping work? Or anybody has any other methods for me to try? Would definitely appreciate, thanks so much