Calculators
Ovulation calculator: Figure out your most fertile days
hCG calculator: How to track your hCG levels at home
Pregnancy test calculator: Figure out when a pregnancy test is most accurate
Period calculator: Predict when your next period will arrive
Pregnancy due date calculator
IVF and FET Due Date Calculator
Due Date by Ultrasound Calculator

Christian M. Becker, MD
Associate Professor at the Nuffield Department of Obstetrics and Gynaecology, Co-Director of the Endometriosis Care and Research Centre, UK
Work Experience: 20+ years’ experience in obstetrics and gynecology
- Principal Investigator
- Consultant Gynaecologist & Subspecialist in Reproductive Medicine
- Lead Oxford BSGE Endometriosis Centre
- Lead Adolescent Gynaecology
Professor Becker's research as well as his clinical work focuses on endometriosis, a common disease in women mostly of reproductive age, which is associated with abdominal pain and subfertility.