Can csect take longer to heal for diff people

Is it normal to take longer to recover from csect than what mostly mentioned as 6 weeks? I read everywhere says by 6 weeks you should recover. Im so worried im at week 5 almost 6, and i still have pain every now and then at incision and also lower abdomen/tummy. My lower tummy is also still hard? Not sure is the muscle or what I went to gynae last week and she said my incision healing well and scanned my internal looks fine. But not sure why uptil now im still having ache/pain/swelling on my right pelvic area and lower tummy. Like the muscle and ligament is still in pain