FSH FSH LH Early corpus luteum Regressive corpus luteum oping follicle Mature follicle @@ 中6 Follicular phase Ovulation Luteal phase Days 1 21 menstrua Progesteron 937.0 Menstruation 36.6 36.2 Days from LH peak-14-12-10-8-6-4-20+2+4+6+8+10+12+14 Cycle day0246810121416182022242628