Hi [@Af3]‍ I've been through a similar thing. I found a lump under my right armpit at around 16 weeks pregnant in December, (it was only small at this time but grew to the size of a large kidney bean and then a grape) I went to the dr and they said to keep an eye on it and put me on some antibiotics as they thought it was a lymph node reacting to something. the lump was still there in March and you could see if when I put my arm up and by this point by anxiety was through the roof, I went back and was sent for an ultrasound. I got a phone call the next day offering me a urgent appointment so I was really thinking the worst at this point. I went for the ultrasound and a few days later spoke to the GP who said it was a 'benign lump' and to monitor it. By this point I'd read literally every forum and article on google and had scared myself silly. 
I couldn't settle as I felt the lump was getting bigger so I asked the Gp to refer me to the breast clinic, I have my appointment tomorrow. I had my baby 2 weeks ago and the lump is definitely getting smaller each day, I did question whether I should still go with it getting smaller now I've had the baby but the GP advised to just go and put my mind at rest. 
I hope this helps a bit? I think it's just your body reacting and any little infection or change in hormone can cause lumps and bumps in pregnancy. 

Hi @Emsy90, thank you for telling me about your experience it really helped me this week. I did my best to stay offline until today. It's nice feeling like I'm not alone, so thank you. I'm trying to hope for the best, but still very nervous for Monday. How did your appointment go? 

Take care 

Hi @af3 I hope you've found things to keep you busy. Your bound to be nervous it's hard not to be, your going through a lot, I hope your okay. I don't know about you but I found I just couldn't enjoy my pregnancy until I had more info. I literally obsessed over the lump, it's the first thing I thought about when I woke up etc. 
the breast clinic was really thorough, I first saw the breast  surgeon who was lovely and did an examination of the lump and both breasts. (It was embarrassing because my breasts were leaking milk everywhere!!) but I think they've seen it all haha. He confirmed he could feel the lump but advised again he did not think it was anything sinister but sent me for another ultrasound to be sure. I was then seen by the radiologist registrar and consultant who checked my armpit and advised it was fatty tissue/ a lipoma. She said it got bigger because of hormones and also I keep poking at it causing oedema around the lump. They were able to confirm it wasn't cancer or anything metastatic (this was my biggest fear) and advised to complete the usual monthly breast check including armpits (and to stop poking the lump) they were really nice at the clinic and understand that your a nervous wreck! 
don't worry about being seen so soon, it's standard procedure. Just think you will have answers quicker. 
let me know how you get on on Monday xx

Hi Af3,

I am sorry to hear about your worries, at what should be a really exciting time for you. Many ladies get breast changes around the time of pregnancy and childbirth, due to all the hormonal changes that the body is going through. I hope that Emsy's experience has helped to ease your concerns somewhat. We always advise people to steer clear of google at this stage, as it only manages to scare us all further and serves no useful purpose.

As Emsy has already said, it is normal to be seen quickly for this sort of problem, so please don't worry about that. I sincerely hope that you get good news on Monday, but you are doing the right thing by getting it checked out.

Please keep in touch and let us know how you get on. We are always here for you.

Kind regards,

Jolamine xx

Hi Emsy,

Congratulatons on the birth of your baby. I am delighted to hear that your lump turned out to be benign and that you can now forget about all those dark thoughts that you had and start to enjoy family life.

Kind regards,

Jolamine xx

Thanks [@Jolamine]‍ it was a big relief and I'm glad I requested a referral to the breast clinic after my first scan for a second opinion. I feel things have been looked at properly. This situation has made me much more breast aware and will make sure I check each month without fail!  I found this forum so useful to read other people's experiences. I saw a lot of your comments scanning through and just want to say a big thank you for continuing to reassure and advise people. Hope you are keeping well x

Hi Emsy,

I have been in your position a few times and agree that the only way to be certain is to have tests at the breast clinic. I am so glad that you stuck to your guns and did this, as you can now relax in the certainty that there is nothing untoward present.

Your experience has taught you a valuable lesson, if it has taught you to be more breast aware, although I sincerely hope that you never have any more scares.

Thank you for your kind comments. I found this forum so helpful in my early days of diagnosis and have had tremendous support from it, which is why I continue to contribute.

Take care and enjoy life with that baby of yours.

Kind regards,

Jolamine xx

Thank you so much,  you have been so supportive and helped me get through all the crazy thoughts your head thinks in these situations  @Emsy90 @Jolamine 

My appointment went well, even tho I was terrified. I have excess breast tissue in my underarm that caused a lump. It can swell before a period in my case about 2 weeks before so it made it almost unlinkable for me and because I'm pregnant the sonographer said my body is on a 9 month long period so it will stay, get sore and possibly swell more. He said everything my breasts are feeling a similar pain will be felt in my armpit. 

Super grateful that it's nothing sinister and I can try train my brain to relax again. Thank you both again so much, you have been so supportive.

Xxx