cramping

Let me start off by saying I'm postpartum 2w6d. I had an emergency C section at 31 weeks and also had my tubes tied. I barely bled after I gave birth. My first I had vagional birth and when I started my period it wasn't until 7 months after I had her. This time I'm not sure if I'm getting ready to start my period or if I'm just cramping from the surgery. Is it possible to have a period just under 3 weeks from having a baby? Also, is it weird that I only bled for 2 days after giving birth c-section? I feel kinda dumb askimg these questions I took it as a blessing with the not bleeding much.