I saw my period on 28-31 of August. I had an unprotected sex on the 2nd of September. I took levonorgestrel after 3 hour, and took another one after 12 hours. I started bleeding right from on the 7th of this month till 10 September. Please will I be okay? Will my period come at the expected time, am supposed to see it on 22 or 24 of this month, but I haven't. is there a chance of pregnancy?.