Eloquis (blood thiners) and periods?

Anyone prescribed eloquis or another blood thinner? I recently started taking Eloquis an my first period on it has been SO heavy. I usually have a five day period and use super tampons the first 2-3 days and a regular for the last couple. I soaked super ones every two hours at least for nine days straight. I have taken a pregnancy test and know I am not having a miscarriage. I feel okay in general, just super concerned at the amount of blood. Is this normal, or has anyone else experienced something like this?