May 27, 2016

Intercourse At The Time of Embryo Implantation

Intercourse At The Time of Embryo Implantation

Sexual intercourse at the time of embryo implantation may lower the chance of becoming pregnant according to a study published in Fertility and Sterility (Fertil Steril 2014;102:178-82).  A large prospective study from the University of North Carolina included a total of 564 women undergoing 1,332 complete cycles found that having intercourse from 5 days after ovulation to 9 days after ovulation corresponding to 3 to 9 days before the end of the menstrual cycle significantly lowered the probability of becoming pregnant. Couples who had intercourse on 2 or more days during the peri-implantation window were 40% less likely to become pregnant compared with couples who did not have intercourse during the peri-implantation window. The probability of pregnancy further decreased with the number of days with intercourse during the peri-implantation window. Sexual intercourse at the time of implantation could theoretically induce a pro-inflammatory response that may interfere with embryo implantation.

Sex After IVF

When is it safe to have sex or how long after IVF transfer can you have intercourse? The recommendation is to wait up to two weeks after embryo transfer before having sex.

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Joseph A. Hill, III, M.D.

Joseph A. Hill, III, M.D. Board-Certified in Reproductive Endocrinology and Infertility