Is cramping after period normal?

Hello Ladies, I’m actively TTC. Now usually, I would have cramps like a week or two before my period and once my period starts the cramps disappears. Now my period ended on 4/25. And I have been having mild cramps for like three to four days now. Sometimes on just one side, then sometimes on the other side. This is happening on my upper stomach. As I type this I’m still cramping (mildly. So I’m getting worried). Once or twice, I saw dark blood in my panties. Another time after I wiped I saw light pinkish blood. I don’t know what to make of this. Does this sound normal? Has anyone experienced this before?