Period or not period

Stacy • 19, College Student, Sociology major
I have the Kyleena iud and my period is consistent but usually last 2 weeks. I'm in my 3rd month with it in and overall does not give me an issue, except weight gain ugh!!! Anyways I was surprised with my period but then it stopped the next day. Is this normal? I've also had the cramps as if I were on my 2nd day.