Test positive. Now spotting. Should I worry?

My tests show a positive line.

I have been feeling cramps and discomfort in my abdominal area for 3 days and waiting for my period, which isn’t coming.

Along with a positive and a 4 day late period, I’m assuming I’m pregnant.

Now I see light spotting when I wipe and these cramps are still present.

Is this normal? Has anyone had this and had a full term pregnancy?

Starting to think maybe it’s too good to be true? Am I having a chemical pregnancy?

Here are two different tests.