Follicular phase - Wikipedia

Menstrual cycle - Wikipedia

Folliculogenesis - Wikipedia

Follicular phase - Wikipedia

Oogenesis - Wikipedia

Follicle Growth and Development

Progestogen - Wikipedia

Follicle-stimulating hormone - Wikipedia

File:Luteal phase diagram.png - Wikimedia Commons

Menstrual cycle - Wikipedia

Why am I spotting after my period?

What is a luteal phase defect?

Luteal phase spotting

BFP story!! (Luteal Phase Defect) - Trying to Conceive, Forums

7 Common Causes of Period Spotting– Birth Song Botanicals Co.