Cant stop gaining weight

I've been trying to handle my weight for a while I have 315lbs 2 years ago. Got down to 200!!! By June last year.

Got pregnant in August.

I gained 62 lbs

After I had baby I went back down to 235 now I'm back up at 290... I work out I track calories.... people say I hide the weight very well but I can feel my legs to tight in my paints and my arms getting huge... what do I do????