I have a lump in my armpit between the size of a nickel and a quarter. It doesn't hurt really, but my arm and shoulder hurts. I've had it for about 2 weeks now and I don't know what it is. It's hard and it is not easily moved. Can anyone tell me what this is. HELP!

hi, I have had a lump in my armpit for 9 weeks..I had an ultrasound that showed it to be a swollen lymph node..I am pregnant so I can't even have it removed or biopsied because it is way up and they would have to put me to sleep..I have been to various doctors and am tired of worrying..