Periods 101 PDF

Periods 101 Dr. Kelli Stephenson, CNM / FNP  Menstrual cycle Primary pathways Feedback loops 28 days “normal” But can be 21-35 days and still be normal “Normal” Typical or average for your patient Apps Day 1 First day of period (LMP) Blood and tissue is l...

Periods 101 Dr. Kelli Stephenson, CNM / FNP  Menstrual cycle Primary pathways Feedback loops 28 days “normal” But can be 21-35 days and still be normal “Normal” Typical or average for your patient Apps Day 1 First day of period (LMP) Blood and tissue is leaving the uterus through the cervix Hormones (LH; FSH; Progesterone; Estradiol) are low Ovary starts to form follicles Entering the follicular phase - > continues until ovulation Day 5-8 Dominate follicle Estradiol increasing Day #8 -> estradiol -> follicle Period has stopped Uterine lining is starting to rebuild Days 9-13 continue the follicular phase Estradiol rises Uterine lining continues to build LH -> sharp rise just prior to ovulation Day 14 Estradiol levels peak Sharp rise in LH -> FSH Egg released from ovary Estradiol sharply drops Ovulation Increased risk of pregnancy Day 15-24 Decrease Estradiol FSH LH Luteal Phase The corpus luteum forms Progesterone starts to rise Progesterone Primary hormone luteal phase Estradiol Slow rise Day 24-28 Oocyte breaks apart if not fertilized Day 24 Estrogen and progestogen levels drop Considered the premenstrual week Day 1 Uterine lining and oocyte leave the body References Jordan, R. G., Engstrom, J., Marfell, J., & Farley, C. L. (2014). Prenatal and Postnatal Care (1st ed.). Wiley- Blackwell. Period problems. (2018, April 25). Womens Health. https://www.womenshealth.gov/menstrual-cycle