BMI Requirements A majority of the fertility clinics we work with will require a BMI of 32 or lower prior to medically clearing you to move forward. There’s research showing that high BMI can increase the risk of IVF not being successful. There are also complications that can affect the pregnancy, to include Gestational Diabetes, high blood pressure, higher risk of miscarriage and stillbirth, among other things. While during your surrogate screening with Abundant Life Surrogacy, we will ensure that your BMI is within the ideal range prior to matching you with prospective Intended Parents. Our ultimate goal is for the pregnancy to be uncomplicated, safe, full term, and healthy!