31w pregnant. normal bmi before/very fit before/gained 15# total but 0 lbs gained in 6 wks. im eating 2500 calories/day. still working out but not as hard/much less than before. why have i stopped gaining lbs/weight in my pregnancy?

Please follow with your Ob/Gyn and get sonogram to see fetal growth and amniotic fluid. If growth is normal and amniotic fluid is as it should be, then probably you will start gaining weight again if you maintain healthy diet. Good luck. Hope it helps.

Both of you are burning the same number of calories as you eat. The number of calories burned by the babe will continue to increase. Use the app Cronometer to track what you are eating.