Do fertility monitors help increase a woman’s likelihood of getting pregnant?

They seem to, according to reproductive specialists.
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There are about a half-dozen fertility monitors on the market, costing $20 to $200. These urine tests measure levels of LH, or luteinizing hormone. That’s the hormone that is made by the pituitary gland and released in a “surge” roughly 24 hours before ovulation, or the release of an egg from the ovary.