I had this during my pregnancy with DD. At 26 weeks I was measuring 34, and by 31 weeks I was measuring 41!

I had a lot of scans from 31 weeks on, had multiple GD testing and everything was clear so there was no medical reason for having soooooo much excess fluid!

My waters ended up breaking spontaneously after a scan at 36 weeks simply because there was no more room and the pressure caused them to rupture.

There is risks that go with this obviously but be guided by your ob/gp and I wish you lots of love for the rest if your pregnancy!