WHAT IS THIS!?!

Ok so I had a d&c in march and I got the depo shot April 24th on day 3 of my period. Iv been spotting brown ever since a week after I got the shot and this week I had what seemed like my period after 7 weeks of waiting for it. The brown just got heavier but it was a medium amount. Yesterday it went back to just spotting. And then just now I was walking with my bf and I felt something kinda wet so I assumed I have more spotting going on. So I go to the bathroom to check (was already wearing a pad as you see in pictures) and this is what I found (the brown was there before his happened). It's like a light pink watery blood or discharge or something what is this?! Who's had this happen to them before??