I'm worried about my twins coming early

I'm currently 32+4 with Di-Di twins. I've had a pretty smooth pregnancy until this last trimester. I was diagnosed with GD, and my babies are growing too fast even with diet control and insulin for fasting. Baby A is around one week ahead, but Baby B is measuring 35 weeks with a bit of extra amniotic fluid which is causing me to have all sorts of Braxton Hicks contractions. Yay. MFM said they are not at all surprised with all the contractions I'm having because they say my body may think I'm 40w with how big I am and is preparing for labor. They also told me to immediately go in if my contractions increase or develop a pattern. Did anyone make it to 37w in a similar situation?