Pinching in my uterus -5-6dpo

Se

So, I only had sex the 15th, ovulated on the 15/16th I think (didn’t check this month but I’ve always been regular to a T)

Yesterday, I started having sharp pinching right below where my belly meets my area 😂 it’s lasted off and on into today. I had a few spots of blood when I wiped (for a few hours) two days ago which is a bit odd for me but if I remember correctly it’s happened to me before.

My period is due in a week from today, but she showed a day early last month! Last cycle was 27 days, app has me at 29 this cycle… probably going to be 27/28 days though which would have af 5-6 days out.

Just looking for your thoughts. Thanks!