Menstrual cycle length, basal follicle-stimulating hormone (FSH), estradiol, anti-Müllerian hormone (AMH), progesterone, and prolactin concentrations with increasing tetrahydrocannabinol (THC) dosing. Individual (red dots) and average fixed-effect (blue lines) menstrual cycle length (days) and hormone concentrations (ng/mL) in response to increasing oral THC dosage (0–2.5 mg/7 kg/day) among eight female rhesus macaques. **P ≤.01. All other hormone associations are not significant at the 0.05 level.