Ovulation and Cycle Changes

Chances of pregnancy with normal, irregular, or absent ovulation

Chances of pregnancy with normal, irregular, or absent ovulation

Why ovulation matters for pregnancy chances Pregnancy requires several coordinated events: ovulation, sperm survival and transport, fertilization, embryo development, and implantation. Ovulation is the release of a mature oocyte from the ovary. After release, the egg has a limited period in which it can be fertilized, while sperm can survive for several days in fertile […]

Chances of pregnancy with regular vs irregular cycles and without tracking

Chances of pregnancy with regular vs irregular cycles and without tracking

The fertile window: why timing matters more than cycle day The chance of pregnancy in any given cycle is not evenly spread across the month. It is concentrated around the fertile window: the days when intercourse can lead to conception because viable sperm and an egg may overlap. Sperm can survive in the female reproductive […]