Recently diagnosed with breast cancer

Hi all. I'm hoping someone can help or just listen really. Back in May I noticed my right breast was increasing in size and had other issues with it, so went to the gp who said it was basically IBS and the breast increase was hormones, they ran bloods anyway and checked me for ovarian cancer which all came back normal. Fast forward to October I returned to the gp and said something wasn't right, I didn't feel right in myself and the breast was rapidally increasing and I was having nipple discharge. She performed a breast examination and found a lump. I was referred to my local breast clinic as urgent. Had an appt on 18th Nov, they performed a biopsy on the lump and said it didn't look suspicious and was most likely just  a cyst so I left feeling relieved. I was called back in yesterday for my results and was told that sadly it was breast cancer. This came as a complete shock to both myself and the Drs. In that moment my whole world came crushing down on me and all I could think about was my little girl. I'm 32 years old, why is this happening to me and what have I done to deserve this. Thankfully it's been caught early but I have to go in for an mri to see if it's spread anywhere else. I have a fantastic support network but yet I feel so alone. My Husband doesn't know how to deal with it and he's way is just to clam up and not talk about it. I'm sorry for rambling on but I just want to talk to someone who is going through the same thing or has been.

Xx