11/08/2026
Researchers have looked at whether having s*x before or after embryo transfer affects implantation or pregnancy rates, but the evidence is still mixed.
Many fertility clinics recommend avoiding s*x around embryo transfer, with common reasons including concerns about uterine contractions after or**sm, a small risk of infection after embryo transfer, and (during natural frozen cycles) a small chance of a simultaneous spontaneous pregnancy.
A few studies have investigated if s*x around embryo transfer affects success rates.
A new 2026 study of more than 1,300 women found no difference in pregnancy, live birth, or pregnancy loss rates between women who had s*x during endometrial preparation and those who didn't.
Most earlier studies found similar results. However, one randomized trial found higher implantation and clinical pregnancy rates when couples had protected s*x the night before frozen embryo transfer.
Researchers have suggested that s*x might help implantation due to increased blood flow, hormonal changes, or improved immune signaling. One leading theory is that seminal plasma may help prepare the mother's immune system for pregnancy.
Interestingly, the only randomized trial to find a benefit involved protected s*x, suggesting the explanation may be more complex than exposure to seminal plasma alone.
Overall, there isn't enough high-quality evidence to conclude that having s*x around embryo transfer either improves or harms IVF outcomes.
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𝑵𝒐𝒕𝒆 𝒕𝒉𝒂𝒕 𝒕𝒉𝒊𝒔 𝒑𝒐𝒔𝒕 𝒊𝒔 𝒇𝒓𝒐𝒎 𝒎𝒚 𝒑𝒖𝒃𝒍𝒊𝒄-𝒇𝒂𝒄𝒊𝒏𝒈 𝒑𝒂𝒈𝒆. 𝑻𝒉𝒆 𝒔𝒂𝒎𝒆 𝒑𝒐𝒔𝒕 𝒄𝒂𝒏 𝒃𝒆 𝒇𝒐𝒖𝒏𝒅 𝒊𝒏 𝒎𝒚 𝒑𝒓𝒊𝒗𝒂𝒕𝒆 𝒈𝒓𝒐𝒖𝒑, 𝒘𝒉𝒊𝒄𝒉 𝑰'𝒍𝒍 𝒍𝒊𝒏𝒌 𝒊𝒏 𝒕𝒉𝒆 𝒄𝒐𝒎𝒎𝒆𝒏𝒕𝒔.
