How far along am I?

Pregnancy Date Information

Pregnancy terminology can be confusing. There are two ways of dating pregnancy.

  • Gestational Age is the reference traditionally used by medical providers to date pregnancy and refers to how long it has been since the first day of a woman's last menstrual cycle (LMP).
  • Fertilization Age refers to how long it's been since conception (the fertilization of the egg by the sperm).  Most women ovulate in the middle of their monthly cycle (or approximately 2 weeks before their next period would begin).

Example: 4 weeks from conception = 6 weeks from the LMP

We offer FREE Limited Obstetrical Ultrasounds, which can verify how far along you are.  

What's going on inside?  See our fetal development page.


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