Was this umbelical hernia? If so I layed off of ab work for 2 months, even after the first 6 weeks i still had pains so I really didn’t wanna mess with it. Also have you had post op check up with your surgeon? This check up he should tell you how your healing and at what rate, also ask your primary or surgeon on what his thoughts are regarding this matter. My first 4 weeks I layed off all weights and did light cardio.