AF Vs Spotting: when do you mark CD1? (For blood test)

Hello guys,

I need to take a blood test for my fertility check up on CD 1-4.

I'm currently on 11 DPO but I've started spotting. Only a tiny trace. But my stomach's sore. And I started spotting leading into AF at 10 DPO last cycle.

I have a blood test booked for Mon 5th, and now Fri 2nd just in case.

I can't get an appt over the weekend.

For the last couple of cycles AF has only been 2-3 full days with spotting either side.

What do you think? Should I go for Fri or risk leaving it till Mon?

Thank you!

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