My chances of being pregnant after taking the morning after pill?

Hi! I'm here to hopefully seek some answers for what I am going through.

Last month on the 11th I started my period ( the bleeding part). It lasted till the 17th ( only spotting ), that day my boyfriend and I decided to have some fun.... Fun turned into a big chaos that night! The condom broke and of course we both flipped. we both just got into the car and drove to the nearest pharmacy market. Within one to two hours I took the pill Take Action( I heard it was like plan b one step). Did my research and took the pill. Now this part really stumped me because five days later I started what seemed like a period , even though I had finished my period five days ago. I am very confused with that , was it supposed to happen ? Now it's about four weeks later and I've been having lots of cramps , mood swing, craving for everything and I can feel some bloating. I have no clue if this is a good thing or not. I am sure enough that I am not ready to take care of a child just yet. I am also worried that i might have too. If anyone can please help I would be very thankful!