It seems simple: an egg + sperm = just one embryo. However, if your sperm is"few, vague and abnormal" as well as your lover is premenopausal at age 37, things start to get complicated.
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It seems simple: an egg + sperm = just one embryo. However, if your sperm is"few, vague and abnormal" as well as your lover is premenopausal at age 37, things start to get complicated.
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