Lump under arm

Has anyone ever had a lump under their arm while pregnant and it turned out to be nothing to worry about? Around 2 weeks ago a found a little pea sized lump while washing, it doesn’t hurt but it has made my underarm and little swollen, towards the end of the day where my bra sits it can get a little uncomfortable. I’m trying not to freak out (it isn’t an ingrown hair or spot, I’ve left it for 2 weeks to confirm that) there is no redness, no lumps anywhere else either. Will be booking to see my doctor on Monday. Panicking 😔