13dpo turned to cd1 :( looking for tips!

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and just like that, 13dpo turns into CD1. super sad. but on the bright side… this was my most regular cycle in almost a year! metformin and a prescription vitamin d dose helped regulate me, woo! and ovulation was confirmed this month as well:)

hopefully 2nd time is the charm. this cycle will be it!

any tips for me for this next cycle to improve my chances??? things to help fertilization and a thick, strong endometrium??