Is this normal or should I be concerned?

Ca

I’m 12DPO and have been getting a progressing line for the last couple days. Is it normal to cramp like AF cramps during this early stage? No sign of AF, many pregnancy symptoms. The cramping switches between my left and right sides and sometimes right in the middle which usually never happens.

I posted my BBT and latest tests just for reference.

I had a CP two months ago and do not want to experience that again.😞