This is frustrating b/c the doctors go by a 28 day cycle. Mine SOMETIMES are 28 days..... more likely 31 though. My last LMP was Nov. 10, 2011. I'm just trying to figure out my conception date and/or due date. Hmph. Help.
Mine range between 30-40 days, and if you're a little irregular like us it's harder to figure out, but you can look up conception and due date calculators (just google them) and they'll give you a pretty close range. When you get your first ultrasound, they can tell you more specifically.
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