Confusing!!

I was expected to have ovulation on the 17th/18th. Had sex Friday 16th, Sat 17th and Sunday 18th. After Friday I had brown discharge, and cramping, Saturday the cramping got worse, Sunday still cramps, and sticky ovulation, today, Monday morning the 19th, cramps have gone and ovulation discharge is very sticky and stretchy, but has gone away now and I feel fine again. I'm so confused!