Cancer?

Anna

Hello ladies, I am 30 weeks pregnant with my first. A couple days ago I had a tenderness in my right breast beside the nipple, I didn't think anything of it. Well today I woke up to go to the bathroom and the tenderness was back so I decided to feel around in my breast to see if I could feel anything. Under my aerola, right beside my nipple is a pea sized lump. I was just wondering if anyone else has experienced this? I am kind of freaking out a little bit. I want to call my ob/gyn but they are closed on the weekends. Can anyone help ease my mind? Thank you in advance!