Implantation or something else?

Had light cramps here and there , in the middle and both sides.. thought maybe it was an early period but here I am 4 days later and no sign of AF ... yet ... little insight please 🙏🏽 I have been in my 5th month TTC. And not that long ago , like 4-5 beforehand I had which I felt as maybe a little sign... see pic below ..

My bell pepper baby