development of a permanent device for fertility period detection by basal body temperature and analysis of the cervical mucus potential of hydrogen

Background: sometimes, women find it difficult to conceive a baby and others use contraceptives that often have side effects. researchers have already established the importance of measuring basal body temperature (bbt) and the potential of hydrogen (ph). method: we have designed and realized a device that allows the simultaneous measurement of the bbt and the ph. we used an arduino uno board, a ph sensor, and a temperature sensor. the device communicates with a smartphone, can be integrated into all e‑health platforms, and can be used at home. we validated our ovulation detector by a measurement campaign on a group of twenty women. if the ph is >7 and at the same time, the bbt is minimum and <36.5°c, the women is in ovulation phase. if the ph is ≤7 and in the same time, the bbt is between 36.5°c and 37°c, the women are in preovulation or follicular phase. if the ph is ≤7 and in the same time, the bbt is >36.5°c, the women are in postovulation or luteal phase. results: we tested the contraceptive aspect of our ovulometer on a set of seven women. we also tested the help of conceiving babies by having intercourse during the ovulation period fixed by our ovulation detector. the results are satisfactory. conclusions: in the final version of our device, we displayed just in “fertility period” if the ph is ≥7 and the bbt is <36.5°c else we displayed in “nonfertility period.”