They may stay the same shape, but you have to expect that the size will change. Working out while pregant will probably help you bounce back quicker, but you should consult your doctor as to how much.
-------------- There are three types of people in this world: those who make things happen, those who watch things happen and those who wonder what happened. We all have a choice. You can decide which type of person you want to be. I have always chosen to be in the first group.
for all pregnant women, during pregnancy time, if everyday i do treadmill for 45 mins,will my hips and thigh stay the same shape or size in this 9 months time or not but ill see the good result after giving birth? thanks