What does this mean?

I just got the Premom app last week, so I apologize for the lack of information on the chart. Does this look like an implantation dip? My fiancé and I BDed April 19, 22, 23, 24 & 28. I had low fertility on the 19th and didn’t do any ovulation tests until 22-25 and it was all high fertility. I had very light pink discharge last Thursday morning and it was watery, and had a consistency like egg whites. It was on the panty liner, not when I wiped, but there was so much discharge that I felt like I peed myself. On Sunday I took another ovulation test and it said I was at the peak. I couldn’t remember where I put the purple Clear Blue ovulation tester, so I used the pink one for the purple test strip since I was in too much of a rush. Help? Please?