Fertility Calendar Day By Day. Take our online fertility test and find out. During the first few weeks of pregnancy, hcg typically doubles every two to three days (though a slower rise can still be normal).so waiting just a few days can make the.
Ovulation calculator forecasts your ovulation and fertile days during your menstrual cycle, based on when your last period started, cycle and luteal phase length. It will help you know the most fertile days, ovulation.