Thanks for the query.
The bleeding you had could be withdrawal bleeding due to emergency pill.
As you had bleeding after the intercourse there is less possibility for pregnancy
Because the endometrium may not receive the zygote
in this state.
And emergency pill can cause side effects like bloating
sensation of the abdomen etc.
So all the symptoms you are having could be due to the emergency pill.
You can go for symptomatic treatment now, and possibly the symptoms will subside soon.
If you do not get periods by expected date, go for pregnancy test once.
Better to avoid repeated intake of emergency pills.