Help! Weird period and endometriosis

Hey so i started my period light on Thursday. Usually my period lasts 6 or 7 days and it starts with a heavy flow and really bad cramps. Well this period was light no cramps at all and lasted 4 days. Well last night i was all done with it. Today there was nothing on my pad but right now when i was using the bathroom i got up and noticed some blood. I didn't felt nothing no blood coming out and i wiped and there was pink light blood. I kept wiping and there was nothing. I am very confused and getting worried. This has nevered happened to me. My last period was like all my periods. Last month me and my S/O had unprotected sex. I have endometriosis so usually i get cramps and pains with my periods but this month nothing. Any thoughts? :/