Before revision: Systematic reviews and meta-analyses of research on variation during the menstrual cycle of women's sexual activity with partners and the effects of the use of the combined oral contraceptive pill (COCP) by women on their sexual desire show that sexual desire is self-reported to be unchanged in most women taking COCPs, but also conclude that the effects of COCPs on women's sexual desire is not well-studied and that women experience increased sexual activity with partners in the last third of the follicular phase of the menstrual cycle and at ovulation (when levels of endogenous estradiol and luteinizing hormones are heightened) as compared with other phases .
After revision: Systematic reviews and meta-analyses of research on variation during the menstrual cycle of women's sexual activity with partners and the effects of the use of the combined oral contraceptive pill (COCP) by women on their sexual desire show that sexual desire is self-reported to be unchanged in most women taking COCPs, but also conclude that the effects of COCPs on women's sexual desire is not well-studied and that women experience increased sexual activity with partners in the last third of the follicular phase of the menstrual cycle and at ovulation (when levels of endogenous estradiol and luteinizing hormones are heightened) as compared with the luteal phase and during menstruation .