Implantation or something else

Bibi

So I had my last period on the 2nd of Sept and for 4 days I had this stretchy watery discharge , pink in colour and sometimes even red. Could I be ovulating or is it from something else? I took Duphaston before I got my period because my cycles are irregular and I was late for 2 months. I had protected sex last week and the timing shouldn’t be right for implantation. Also, my right nipple hurts when I squeeze it and I feel some cramping on my right side…

This was today

And this was yesterday