Did your other activity increase recently ? If you are doing much more around the house or garden or similar it can effect leakage. Even too many kegel exercise repetitions can tire still very sensitive pelvic floor and increase leaking. I read a lot about incontinence lately since my husband is having a surgery next month and that was one of the things that was mentioned often. Try resting little bit more and see if there is any change - if yes, than you need to take it easy. You are basically still "fresh off the table" < 3. Also, body needs time to heal after surgery and recovery "line" is rarely strait up, usually it has some bumps and curves 😉 and sometimes even U-turns. I am sure that in couple of weeks you will see big improvement and many say that 3 mos for some reason is often a turning point .