Shortest Luteal Phase with BFP?

Laura

I’m cycle Day #19, and just got my LH surge. My cycle is usually 30-31 days, so my luteal phase will be 9-10 days this month. I was wondering what’s the shortest luteal phase you’ve had, but still had a BFP? I read that if it’s 10 days and under, it’s hard to conceive.

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