How To Calculate Pregnancy Weeks After Ivf?

Due date calculation for IVF pregnancies

  1. Egg retrieval date plus 266 days (or 38 weeks) for IVF using the patient’s own eggs (with or without ICSI)
  2. Egg retrieval date plus 266 days (or 38 weeks) in the case of an IVF cycle with fresh eggs from a donor (with or without ICSI)
  3. The fresh donor embryo cycle is defined as the date of egg retrieval plus 266 days (or 38 weeks)