Throwing up with NuvaRing?

Yasmine
I just got my NuvaRing in yesterday and I'm experiencing extreme fatigue. I fall asleep for hours, and after I wake up I feel nauseous. Earlier after I ate I felt a bit better, but this time when I woke up I threw up. About how long should this last before it's obvious that I'm just plainly allergic to this? I feel horrible.