Pls help me!!! im so confused....?

okay, about a few weeks back i took the morning after pill, anyway it made me sick and stuff but the leaflet said my period might be late,then last week i had done a silly thing and had to take the pill again but i was due on the same day that i took the second lot and i did get my period on that day but it stopped the next day. i also read on the leaflet that the pills don't work if taken in the same cycle it doesn't work, is this true? did i take it in the same cycle considering i took it as i got my period? but also i am feeling very sick and can't keep anything i eat down. i also got my period again so im confused can i be pregnant or not? please advise me i am really confused and i would appreciate your help... thanks..