it is good to exerise so that your body doesn't become weak
how much weight will i lose if in 4 weeks if i do atleast 2 hours of excersising a day and eat less than 800 cals
The longer you run, the more your body will attempt to hold on to that belly fat.I recommend that every other day you do short bursts of high-intensity running or other aerobics, and on the days in between do weight lifting exercises. Studies have shown that this technique is more effective in burning abdominal fat.Also do some muscle building exercises which will increase your body metabolism and you can burn more fat.
Your main concern should be making sure you baby is growing properly and receiving enough goodness for him/her to grow. Eat healthily. Like it or not your weight will change, even after your pregnancy but by eating healthy and moderate execise during your regnancy shouldn't make it hard to shift the weight.