Estimate your ovulation & fertile window. Suggests best days (theory-based) if aiming for a boy — and gives a simple twins chance hint.
(Optional) Biological and lifestyle factors like family history, age & fertility treatments can affect twin likelihood.
Estimated Ovulation Day: —
Fertile Window: —
Best days (for boy — theory): —
The Ovulation Calculator for Boy Twins is a tool that estimates your fertile days if you are trying for twin boys. It works by tracking your ovulation period based on your menstrual cycle. While not guaranteed, it can help couples plan naturally.
Pregnancy Due Date Calculator: Click Here