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Code to Conception

Daily micro-protocols for the 90-day miracle window

Day 19 of 90

| October 29, 2025  |

🔬 Pre-Bump Biology  

Timing wins pregnancies. Urinary LH strips pinpoint the 24–36-hour runway to ovulation, while home semen trackers standardize male-factor monitoring across the 74-day spermatogenesis cycle. Layer in cervical mucus (prospective) plus BBT/WST (retrospective) and you tighten the fertile window, boost total motile sperm exposure, and raise chances of a live birth within the first two cycles.

🧬 Protocol Drop  

Today’s Allopathic Protocol:
Test urine LH daily at 11 am–3 pm from CD9–11 (earlier if cycles <26 d). When the line rises, switch to twice daily until positive. Have intercourse on LH-2 and LH-1 (the two evenings before your strongest positive). Confirm ovulation with urinary PdG ≥5 µg/mL for 3 days in the week after the peak. Run two home semen tests this month, 7–14 days apart, with 2–5 days abstinence and mid-day collection.

Today’s Holistic Protocol:
Track cervical mucus at each restroom visit and BBT (on waking) or overnight WST daily. Begin intercourse every 24–48 h from first slippery/egg-white CM through two days after CM-peak. If cycles are irregular or you’re ≥35, add LH strips when CM first turns fertile to tighten timing.

👉 Read the summary on LH strips + home semen tracking.
👉 Read the summary on cervical mucus + BBT/WST.

📚 Glossary Pop  

PdG (pregnanediol-3-glucuronide): A breakdown product of progesterone measured in urine. Sustained PdG ≥5 µg/mL for 3 days after your LH peak is strong evidence that ovulation occurred and the luteal phase is underway.

Want to learn more?

Gibbons, T., et al. (2023). Timed intercourse for couples trying to conceive. Cochrane Database of Systematic Reviews, 9, CD011345. https://doi.org/10.1002/14651858.CD011345.pub3

Johnson, S., et al. (2022). Connected ovulation testing and live birth outcomes. Women’s Health Reports, 3(1), 60–66. https://doi.org/10.1089/whr.2021.0102

Najmabadi, S., et al. (2021). Cervical mucus patterns and the fertile window. Human Reproduction, 36(7), 1784–1795. https://doi.org/10.1093/humrep/deab049

Lin, G., et al. (2024). Wrist skin temperature across the menstrual cycle. npj Women’s Health, 2, 35. https://doi.org/10.1038/s44294-024-00037-9

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