Work? I used to take stimulant laxatives before I got pregnant to

Keep regular (flaxseed oil, senna) so unfortunately I have a bit of a tolerance built up. I stopped everything as soon as I found out I was pregnant a few weeks ago and now I'm in agony. All I read was to avoid stimulant laxatives while pregnant (the only thing that works) so obviously I only want to do what's best for my baby. I drink miralax at night and take some Metamucil during the day to help but best I get is a BM at night after drinking LOTS of warm water and the miralax. And it's not much. The bloat is killing

Me. So uncomfortable. Any advice or suggestions is truly appreciated!