hi I need advice on this one please as really worried and never get any good answers.?

Its abit of a long story but I give brief details not to make it boring.

had protected sex on two occasions and took morning after pill for both within 12hrs of sex. both incidents happened on the 10th and 26th june.

I had a bleed on the 16th june for 4 days everything looked normal.

then for the second incident had a bleed from 17th july for 4 days all looked normal.

I also took std tests twice both two weeks after each incident all clear.

I had now unprotected sex on the 21st july although he never came in me to my knowledge however I did take the morning after pill 1 hour later.

I then started bleeding on the 29th july which lasted two days which was a week after the pill.

my questions are these?

the bleeding that I had for two days should I be worried?

when can I do a preg test to make sure I am not pregnant?

when will I get a proper period?

have I really messed up my cycle?

has the recent morning after pill I have taken worked?