It appears as though I have a fever.... and I feel like I'm burning up. My fiance was sick the last few days and now I'm kind of getting it. My nose is a little stuffed up and my throat a little sore. It wasn't anything I couldn't handle but now it seems like I have a fever. Should I be concerned about this? It's 9pm here so I can't call my doctor (it's Sunday anyways, so I guess that doesn't matter

haha). I don't know that I should go to the ER over a fever so I'm just looking for opinions considering I've never been through this before and I don't know how serious it actually is.
My fiance is on the way to CVS to get a thermometer to see how high it is because ours had broken a while back and we hadn't replaced it yet... hopefully it's not too high.
I'd rather not take Tylenol if I don't have to because I had a loss a few months ago and I'm just trying to be cautious. Any advice would be awesome!