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Question:
Dear Sexualhealth, My wife and I are trying to conceive, and I realize how little I know about timings, etc. She told me that we should not have sex more than every 48 hours because my sperm would not be effective or strong enough. So, an ironic thing happened. We did not have sex for about a period of 10 days (due to her period, my work travels, etc.). However, this morning I woke up realizing I had ejaculated in my sleep. Then we had sex shortly after this (it turns out that this was one of the key days for becoming pregnant). So, my question to you is, is there still a good chance of my wife becoming pregnant if I ejaculated 5-6 hours before having sex, or is my sperm too weak (or not developed) during the second ejaculation because of the short time interval between the two ejaculations? If there is a possibility, are the chances significantly reduced? Is it true that we should let 48 hours pass before making love? I actually find the situation kind of humorous because what happened was out of my control, but it also made me realize that I should understand at least the basics. Thank you very much for your help.

Answer:
by Scott Gross:
(04/13/2006)
Hi and thanks for your question. Actually, your wife is incorrect in this regard. A healthy man's testicles are constantly producing sperm so there's no need to wait 48 hours or any time for that matter between times that you have sex. There are a few things that you can do to give yourself an edge in the hopes of conception. First is to wear loose underwear and clothing. Sperm need to grow best at a temperature that is slightly below normal body temperature (that's why the testicles hang down from the body). Wearing loose clothing will help your testicles maintain the best temperature and produce the best sperm. Secondly, you can have more sex during your wife's most fertile times. And those are the days around which she is ovulating. A woman always ovulates about 14 days before she starts her period, and sperm can survive inside a woman's body for up to 5 days. Therefore, you should be having the most sex during the time that is between 19 and 9 days before her period begins. Those 10 days offer the highest chance of a pregnancy beginning. So, the short answer is that no, you don't need to wait 48 hours in between having sex. Good luck to you and don't forget to relax and enjoy all that great sex you're having. Take care, M. Scott Gross

Reviewed by: Patricia Fawver Ph.D. in Sexology

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