Had my normal menses last week of March from 27 to 31. After an overdose of postinor 2, I Bleed on 10th of April for some days like a week, i have not had my menses since but had unprotected sex on 23 april, 27/28 April and 18 May, what should I do? Can I take a contraceptive because I m in the 72hr window? Worried, don t want to be pregnant? Is it safe to take the pill again since I have not had my menses since?