21 day bloods 🤦🏽‍♀️

Sarah-Jane • TTC 16 months💏We did it🤰🏽Sophie born 10/7/18💕
I got my positive O on CD14 and last AF started 3/3. Tomorrow I'm getting my 21 day bloods for ovulation, I know it should be 21 days but can't take blood on a Friday and next Monday will be 24/25 days (my AF will appear on CD26/27) will this be ok a day early or best to make it later? 

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