# How To Calculate HPL Based On HPHT?

Hi … I got pregnant with my first HPHT on May 25, 2019, but in May I did not have a husband and wife hub. I got married on June 7, 2019. I should have had my menstruation on June 25, I did not menstruate. That’s the HPL calculation, what do you do?

Hello. Thank you for the question submitted to HealthReplies.com. We can understand the concern you feel.

Estimated day of birth (HPL) can be estimated in several ways. One method commonly used is to use the Naegele formula and is based on the first day of the last menstrual period (HPHT). Because the HPHT is May 25, 2019, then add 7 to the day element, subtract 3 to the month element, then add 1 to the year element. So, your estimated HPL is March 1, 2020. More or less real labor days can occur in a vulnerable 1-2 weeks before or after the HPL. or, However, this calculation can only be relied on if you have a history of regular menstrual cycles with a cycle of 28 days in average each month. If the average number of days in your menstrual cycle history is not 28 days, it needs to be adjusted again in the calculation of this HPL.

Another relatively more accurate way to estimate the age of birth is by obstetric ultrasonography (USG). Estimated gestational age and HPL through obstetric ultrasound examination are most accurate when done in the first trimester of pregnancy. The reason is in that period, the fastest growth of embryos (embryos) and the least biological variation. What is measured on ultrasound examination in the peratama trimester is the average diameter of the gestational sac if the structure of the embryo has not been seen, or the length of the embryo if the structure is already visible.

So, if you have had an ultrasound examined in the first trimester to estimate gestational age, you can estimate the HPL based on the results of the examination. Do not hesitate to consult an obstetrician and gynecologist who treats you regarding your HPL.

Thus information from us. Hopefully always healthy. May be useful.

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