Confused??

Shekiba • 3 yrs TTC #1. MFI. 1st IVF cycle in July '17 = 2 embryos by ICSI frozen. Natural FET in October canceled. Medicated FET with both embryos in September=failed IVF cycle.
I normally have a 24 day cycle. So last af was 2 days late which made it a 26 day cycle, I believe do to stress and testing. +opk was 6/8. Today (23 cd) I wiped and saw pink streaks and cm a few times. AF not due til 6/25. Do you think this is normal cycle trying to come on or can implantation be this late?