Pregnant with IBC symptoms

Hello all. I am 36 and am currently 31 weeks pregnant with my 3rd child. A few months ago I noticed some changes in my breasts. They seemed to be dimpling. They also would have redness and marks from my bra. I bought a bigger bra due to breast growth and that helped a lot. My breasts have grown a lot during pregnancy. The symptoms I am currently experiencing is peau d orange appearance and skin thickening. The left breast is always a little bigger so not too worried about that as it is not significantly bigger. The left breast however has a greater amount of dimpling and thickening although there is some on both. I thought it was pregnancy related so I ignored it until I heard about IBC. I saw my ob, she said it might just be pregnancy changes but said she would send me to the breast specialist. It took her  a week to write the order. I called every day freaking out telling them  time was of the essence. I got in about a week ago and they would only do an ultrasound. They saw nothing and said it was clear. The specialist looked at my breasts and said he was sure it wasn't IBC. I asked him about a biopsy and he said no that he wouldn't do it as it was not necessary. I was relieved for half a day and then started to worry again. I went back to  the breast specialist and saw their most trained doctor. He looked over the ultrasound and at mt breasts and said I was fine and to stop worrying. He said after birth this would go away. I forgot to mention that the thickened areas soften when I take a bath or lay down for long periods and it also softened dramatically when they did the ultrasound. My guess was because I was laying flat and the pressure from the transducer they were gliding all over the thick area . He said I just had really large breasts and edema in them due to being pregnant. He said the fact that they soften at times and  that it is on both sides mean that it is not IBC. He said he had seen IBC and this was not it. He said he was so positive that he too would not do a biopsy. I have heard other pregnant ladies say their docs  said the same. I left being happy but now am again in a panic. I discussed with the doc all the things I had read and learned and he told me there is not enough info on pregnant breasts online and to stop looking at the web. So he told me that if I needed a third person to say I was okay to go to a dermatologist.  I made an appt and no one could get me in until next week. Is there anyone else I should see? Will I need a referral? How do I just wait and see if it goes away knowing how dire it is if they are wrong? I am scared and unsure of next step to take. Also last night for the first time my breasts were hurting. On the left it was near the area that is thickening. It didn't last ling and could just be my milk preparing to come in. Any advice from anyone would help ease my mind. Btw the place I went was a breast cancer  center so you would think they were taking me serious. They were nice and helpful and the nurses said that the docs would give me a biopsy if they had the slightest doubt. She said that especially the fellowship trained doctor I saw gave the most biopsies in the place and if he felt I was at even the smallest risk he would have done the biopsy.  Sorry so wordy and scrambled.  I am just so wracked with anxiety.