Ay, congrats ulit sa baby mo! By now (late July/August na?) your CS scar should be mostly healed on the surface, but honestly it takes a good 6-8 weeks para completely okay na, kaya don't worry kung still medyo sensitive or may slight redness pa, totally normal yan. Best to ask your OB during your check-up kung ready na talaga siya for normal activities, kasi bawat katawan different and some of us heal faster than others, pero usually around 6 weeks pwede na ng regular duties.