Am i the only one being restricted from exercising?

My Dr told me since early in my pregnancy ( im 30 weeks now) not to do any exercising including walking too much. The reason being is because every time I would exercise I would begin to have Braxton hicks contractions. I wouldnt do anything heavy nor long time period. But I can continue do daily routines like cooking and cleaning or going shopping for short period of time. But thb, lately I haven't been feeling myself. I am trying really hard to maintain my weight but I can see that I've been gaining weight on my arms and legs. DONT get me wrong I am super blessed to be pregnant 🙏 but I just can't wait until I have my beautiful baby boy to begin exercising again! Lol I envy my SO because he goes to the gym almost every day and you can see the results like I'm just here like😑. I'm NOT complaining just ranting out a little. Ofcourse my sacrifice will be worth it. Just wondering if anyone feels the same?