DPO Calculation:
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DPO (Days Past Ovulation) is the number of days that have passed since ovulation occurred. Tracking DPO is important for fertility awareness, pregnancy tracking, and understanding menstrual cycles.
The calculator uses a simple date difference calculation:
Where:
Details: Knowing your DPO helps with fertility tracking, identifying the best time to take pregnancy tests, and understanding your menstrual cycle patterns.
Tips: Enter your ovulation date and the current date (defaults to today). The calculator will show how many days have passed since ovulation.
Q1: How accurate is DPO calculation?
A: The calculation is mathematically precise, but depends on accurate ovulation date input.
Q2: When can I take a pregnancy test based on DPO?
A: Most tests can detect pregnancy 12-14 DPO, though some early tests may work at 9-11 DPO.
Q3: What's the typical luteal phase length?
A: Typically 10-16 days, with 14 days being most common. If pregnancy doesn't occur, menstruation usually begins 14 DPO.
Q4: Can DPO help predict due date?
A: Yes, estimated due date is typically 266 days (38 weeks) from ovulation date or 280 days (40 weeks) from LMP.
Q5: What if I don't know my exact ovulation date?
A: You can estimate using ovulation predictor kits, basal body temperature tracking, or cervical mucus changes.