Okay mama, honestly I think it's fine pero better check with your OB muna kasi every pregnancy is different, especially at 7 months na! A few of us tried modified Pilates during pregnancy pero it really depends kung ano ang okay for your body at kung may complications ka or not. Your doctor can give you the green light and maybe recommend which moves to avoid, mas safe na yan talaga para sa peace of mind mo at sa baby. Good luck with your pregnancy!