Implantation or period ?

Question

I’m two days late and had unprotected sex the 16th. the 16th is in my high fertile window (33%). I was supposed to start the 27th.

Answer

No. That’s your period.
Implantation bleeding is not red and cannot happen if your period is late.

Answer

No, I’m sorry, but this is your period starting.

Answer

Did you track using opks or are you going by what the app says

Answer

It’s your period 😕

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