When did I ovulate and which seeds should I consume to support implantation and early pregnancy, given my luteinizing hormone (LH) levels and fertile cervical mucus (FCM) on cycle days 13 and 14?

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Timing of Ovulation Based on Your Hormone Data

You most likely ovulated on the evening of CD14 or early morning of CD15, approximately 12-24 hours after your LH peak of 45 at 9:30am on CD14.

Analysis of Your Ovulation Timeline

Your hormone pattern shows a classic LH surge progression that allows precise ovulation timing:

CD13 Evening Through CD14 Morning: LH Surge Initiation

  • Your LH rose from 12.3 (CD13 FMU) to 26.7 (CD13 6:15pm), marking the beginning of your LH surge 1
  • By CD14 9:30am, LH peaked at 45, representing your maximum surge 1
  • Ovulation occurs 8-20 hours after the LH peak, or 28-36 hours after the initial LH rise begins 1

CD14 Evening: Post-Peak Decline Confirms Imminent Ovulation

  • Your LH dropped to 22 by 7:30pm CD14 and 12.1 by 10:30pm (though diluted), showing the characteristic post-peak decline 1
  • The cramping you experienced throughout CD14 until 6pm, followed by pulling/achy cramps at 2am CD15, are consistent with periovulatory pain that occurs around the time of follicular rupture 2

CD15: Post-Ovulatory Confirmation

  • Your E1G peaked at 258.6 on CD15 FMU, consistent with the preovulatory estrogen peak that occurs just before ovulation 1
  • Your LH continued declining (18.6 FMU, 15.2 at noon), confirming you were past the surge 1
  • The persistent egg white cervical mucus (EWCM) on CD15, combined with nipple sensitivity and body warmth, represents residual estrogenic effects, though ovulation had likely already occurred 2, 3

Most Precise Ovulation Window

Based on your LH peak at 9:30am CD14, ovulation most likely occurred between 5:30pm CD14 and 5:30am CD15 1. The cramping pattern (all-day CD14 until 6pm, then pulling cramps at 2am CD15) suggests ovulation occurred closer to late evening CD14 or very early CD15 2.

Seed Cycling Recommendation for Post-Ovulation

You should now consume pumpkin seeds and flax seeds (luteal phase seeds) starting from CD15 onward.

Luteal Phase Nutrition Strategy

  • The luteal phase begins immediately after ovulation and requires nutritional support for progesterone production and potential implantation 4
  • Pumpkin seeds provide zinc and magnesium, which support progesterone synthesis 4
  • Flax seeds contain lignans and omega-3 fatty acids that may support hormonal balance during the luteal phase 4
  • Consume 1-2 tablespoons each of ground pumpkin and flax seeds daily throughout your luteal phase 4

Why Not Sesame and Sunflower Now

  • Sesame and sunflower seeds are traditionally recommended for the follicular phase (CD1 through ovulation) to support estrogen production 4
  • Since you have already ovulated (confirmed by LH peak and decline), you are now in the luteal phase where progesterone support is the priority 4

Common Pitfalls to Avoid

  • Do not rely solely on cervical mucus timing: While your EWCM on CD14-15 correlates well with your LH surge, cervical mucus can persist 1-2 days after ovulation due to residual estrogen effects 2, 3
  • Do not assume ovulation occurs at LH peak: The actual follicular rupture happens 8-20 hours after the LH peak, not at the peak itself 1
  • Do not discount diluted urine readings entirely: Your 10:30pm CD14 reading of 12.1 was diluted, but the downward trend from 22 at 7:30pm still indicates post-peak decline 4

References

Research

Ovulation detection in the human.

Clinical reproduction and fertility, 1982

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Related Questions

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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