Hi, I'm 7 months pregnant and have had swollen, sensitive underarm lymph nodes throughout my pregnancy. When I was a teen, these lymph nodes would get sore when I would get my period. Now, they are pretty swollen and tender. Is this a common pregnancy-related symptom? I'm 31, 5' 5" in height, 182 lbs (160 before I got pregnant). I have endometriosis, which I'm not currently suffering from during pregnancy.