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Assuming pregnancy takes place, the only reliable sign that a woman is pregnant is cessation of her menstrual period. If she's late, urine tests are a reliable way to confirm pregnancy, especially if the woman has irregular periods. Up to 50% of women will not experience nausea (the range, depending on the study, is 15-50%); while most will, when they do ...


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Short Answer Masturbating does not decrease fertility or sex drive Long Answer Historically, masturbation was discouraged for a variety of reasons including the thought that it lead to mental health problems. However, that was disproved. The abstract of Coleman, E. (2003) states Research on masturbation has indicated that, contrary to traditional ...


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There are no relevant researches that links the two things. Moreover, some specialists say that masturbation can prevent, or at least decrease, the risk of develop a prostate cancer. Keep in mind that these are new studies, so data are too few to create a rule. With the informations that researchers obtain, they can say that the risk is reduced (1). But as I ...


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9 months / 40 weeks. Multiple stories have been printed over the years of women who discovered they were pregnant only while delivering a baby. Typically these women are overweight and have irregular periods. They don't get any morning sickness, and they interpret the baby's movements as gas. (To find stories on this in the popular press, just search for "...


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From this answer on Biology.SE (given and researched by me): Yes, this is possible through something called heteropaternal superfecundation (see below for further explanation). Of all twin births, 30% are identical and 70% are non-identical (fraternal) twins. Identical twins result when a zygote (one egg, or ovum, fertilized by one sperm) splits at an ...


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