Outa wack

My period has been very weird !!!!!! Im paranoid . On June it lasted 15 days and this month it came kinda late but it lasted only 3 days.

I was on the mini pill for 2 months and stopped on the endings of April . After That’s when my period lasted for 15 days.

My period this month has been tooooo weird idek if its a period?!?! It has been very light the first day it was brown and throughout the day it got litter redder but not really . Then it got brown again and its so light that I don’t have to wear a pad . Only when I wipe i can see it , and it doesn’t even stain my underwear lol !!! Is this normal?! I took a pregnancy test 4 days ago and it was negative . Is this normal ?! I’m on my second day of my new birth control pills ! Any advice on what can this be ?!