Hello dear I understand your concern Pregnancy is not possible as you had sex when you are on the deviry. Deviry itself act as a contraception till you are taking it. Your period is delay is due to PCOS that cause the hormonal imbalance. Period can be induced by the high progesterone shot under the advice of gynecologist if period will not come in next 4-5 days. You can also take the following treatment for the PCOS: tablet metformin, clomiphene citrate Birth control pill to regularize the period. Do regualr exercise and reduce 10 % weight if you are obese. Eat healthy diet with multivitamin tablet and antioxidant supplements. Hope this may help you Contact HCM for further health query Best reagrds Dr. Sagar