I'm trying to calculate my pregnancy weeks using my Last Menstrual Period (LMP), but I'm a bit confused about the exact calculation. Can someone explain how to accurately count pregnancy weeks from the LMP?
It's simple math. Take the first day of your last period, and count the weeks from that date to today. Your dating scan might adjust it by a few days later, but LMP is the standard way to start.
Just count from the very first day of your Last Menstrual Period (LMP) to today, each week is one pregnancy week. I used to get so confused back then, but now looking back at my toddler, it seems so simple!
Count the weeks from the first day of your last period. Once you calculate it, make sure to visit your doctor for regular follow-ups, especially if you have thyroid issues, as early monitoring is very important.
While LMP is the usual way to calculate, I always suggest checking with your gynac for safety. They will do a proper early scan to confirm the exact gestational age of your baby.
Calculating by LMP is standard, but please be cautious if your cycles are irregular. My doctor advised that a dating ultrasound scan is much more accurate for calculating the exact week, especially if there are any health complications.
Just start counting from day one of your last period! It is pretty simple, though with my twins, my belly made me look weeks ahead of what the LMP math actually said!
My doctor explained that pregnancy is calculated from the first day of your LMP because that's when the egg cycle starts. You can use online due date calculators, but the early dating ultrasound around week 8 is the gold standard for final dating.
