The Role of Hormones in a Woman’s Fertility

March 13, 2025
The Role of Hormones in a Woman’s Fertility

Throughout a woman’s menstrual cycle, hormonal changes play a key role in regulating fertility. But which hormones are assessed during a fertility evaluation, and how do they contribute to pregnancy? Here’s a breakdown of the essential hormones involved in female fertility.


Follicle-Stimulating Hormone (FSH)

🔹 Function: Stimulates the growth and maturation of follicles in the ovaries.

🔹 Why It’s Important:
✔️ Supports oocyte (egg) development.
✔️ Promotes the production of estrogen.
🔹 Key Insight: FSH levels fluctuate throughout the menstrual cycle and are an important marker of ovarian function.


Luteinizing Hormone (LH)

🔹 Function: Regulates the menstrual cycle and triggers ovulation.

🔹 Why It’s Important:
✔️ LH peaks mid-cycle, signaling the most fertile period.
✔️ Triggers the release of a mature egg from the ovary.


Estrogen (Estradiol)

🔹 Function: Plays a significant role in ovulation and embryo implantation.

🔹 Why It’s Important:
✔️ Stimulates follicle growth and oocyte maturation.
✔️ Encourages LH production, which triggers ovulation.
✔️ Prepares the endometrium for embryo implantation.


Progesterone

🔹 Function: Dominates the luteal phase (post-ovulation) and supports early pregnancy.

🔹 Why It’s Important:
✔️ Prepares the endometrium for embryo implantation.
✔️ Maintains blood supply to the uterine lining.
✔️ Regulates cervical mucus to support early pregnancy.
🔹 Key Insight: If pregnancy does not occur, progesterone levels decline, triggering the next menstrual cycle.


Anti-Müllerian Hormone (AMH)

🔹 Function: Supports follicle development and indicates ovarian reserve.

🔹 Why It’s Important:
✔️ Unlike other hormones, AMH remains stable throughout the menstrual cycle.
✔️ Serves as a reliable marker of a woman’s fertility potential.


Summary

Measuring these key hormones provides insight into ovarian reserve and reproductive health. Understanding your hormonal balance is crucial when planning for pregnancy.

📞 Have Questions? If you’d like to schedule a hormone evaluation, contact Sakalli IVF today. Our expert team is here to guide and support you on your fertility journey.

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