I started my pregnancy 40 pounds over weight. I wanna have a fit pregnancy but I’m too tired to move…

I started my pregnancy 40 pounds over weight. I wanna have a fit pregnancy but I’m too tired to move and hurt and get car sick driving. I feel gross. I evny moms having a decent pregnancy. I don’t even wanna eat cuz I don’t wanna throw up and get constipated finally cleaned out. The pain hurt so bad to even fart 😭😭😭😭😭😭. Suggestions. Already eating only nutritious stuff and drinking gallon of water a day