If they go by your LMP they will go on the assumption you have a 28 day cy and O on CD#14. If you did O on CD#15 that's a really close guess! At your first appointment, let them know that you think there is a possible discrepancy in your ovulation date of a week. An 8 week U/S is still nice an early and will clear up confusion about that possible week

you must be so excited

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