Hello, I have several concerns and I really need your help and support. So i had protected sex on 14 November, but the condom burst and I don't know when exactly so I took Postinor 2 30 minutes after sex, and the next tablet 12 hours later. My period was supposed to come on 18 November but it has been 2 days late already, I have seen no period yet. Shall I be worried that periods are late? Plus, after peeing today I saw some light brownish thing, I got excited and thought probably the periods are starting. Am I right? or shall I get worried for this too?