Expulsion!?

Isa • Pronounced (ee-sa)...22

I just found a big thing of brown discharge in my underwear and I haven't had that since I first got my second IUD and I just started my cycle for the second time this month...I start on the first week of each month and this is the end of the month and the second time I'm starting it...should I be concerned for expulsion and go see an OBGYN? Help!