2days AF and now it's brown&spotting

hey ladies this month is totally weird i started my AF 2 days ago and today I go to change my tampon and noticed it was brown but nothing big again I use the bathroom whipped nothing...did the deed and I used the bathroom and I peed pink...can someone help me or give an opinion on what they think is up...my AFs only last about 4 days but don't come on time sumtimes...