My thought on this, and only a thought, not a recommendation, would be to start a cycle as you would OCs. First dose on the Sunday after your period starts; a time when everything is low (estrogen, progesterone, etc.) and mostly likely to suppress LH and FSH and subsequent ovulation along with estrogen and progesterone increases. BUT, there is no guarantee that ovulation will not occur. We know this from transsexual women to men who can still ovulate on 200 mg every 1-2 weeks of Test Enanthate. Therefore, it probably also depends on the AAS, dose and individual response.
BTW, estrogen does NOT protect one from the virilizing sides of androgens.
Because this will never be studied in a clinical setting, as Lobo said, it is critically important that you ladies keep record of your experiences (good or bad) and post them. You are the lab rats.
W6