Need some advice lol

Ok so I posted the other day about my period being weird this month. Monday I started and there was blood, and cramping. Then Tuesday, Wednesday and today it hasn't been hardly anything just brown spots here and there. Usually my periods are heavy the 2-3 day, and I mean heavy. It's just unusual for me to have a strange period like this. My friend thinks I should get a test and take it, but I don't think I will. What do you think?