Can sperm in urine fertilize? For example, after previous ejaculation. Specifically, it is about the survival of sperm residues in the urine and their possibility of fertilization.
The second question is how much fertile days really begin before ovulation, thank you in advance for your answer.
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Katarzyna Chadryś Pharmacist, Editor
5 months ago
I have not found detailed research and information on this subject. Nevertheless, urine has an acidic pH, which is not conducive to a long sperm life. The survival time of sperm outside the body, under favorable conditions, is estimated at a maximum of 17-18 hours. In unfavorable conditions, e.g. in urine or in a dry, cold place, this time will be correspondingly shorter and can range from a few minutes to several hours. It is therefore possible that sperm cells that are in the urine shortly after ejaculation may still be able to be fertilized. However, this urine would have to go directly into the woman's genital tract.
When it comes to fertile days, ovulation usually occurs about 14 days before the next menstrual period. Fertile days begin a few days before ovulation (usually 4 days before ovulation) and last up to 3-4 days after ovulation, with the best chances of getting pregnant on the day before ovulation and on the day of ovulation. What is worth bearing in mind, depending on the source, the life expectancy of sperm in the female genital tract is estimated at 2-3 days, up to a maximum of 5 days. Therefore, intercourse previously may also carry the risk of conception.
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