Losing weight post baby

My son was born with a condition and passed away after about 5 weeks.

I was unable to breast feed, so I didn’t lose weight as quickly as other moms who burn thousands of calories breast feeding.

I still cannot lose the weight in my stomach. I’ve lost some, but not all. I eat clean, I try to workout a lot but work gets in the way.

Does anyone have any suggestions for losing post baby weight? My abs are weak and I don’t know the types of workouts to do to lose this stomach weight off.