Can I every catch a break?

So i texted my sister a little bit ago. (background) 2 months ago she was bra shopping.. she is now a 40B, and was talking about how kinda freakish it is.. and how hard they are to find. Well, since I have gotten pregnant.. my boobs are umm.. growing! but i am still losing weight.. so i am smaller around. Well, I am now a 36E. I thought.. well I will text her and tell her about it.. so she doesn't have to feel so freakish about her own.. and now she can feel my freakishness.. since I am officially like stripper size. Well now she is even more pissed off at me than before. She hasn't found the humor in it at all. Its bad enough that she is constantly pissed off that I am even pregnant in the first place.. she isnt talking to me at all.. but everytime I reach out.. i am either ignored or yelled at. So.. I am thinking that.. for the sake of me and my little Wilbert.. I have to cut that tie for right now. She is pregnant with my niece.. due in a month.. but yet It seems like I can't be involved. Since I found out I was pregnant.. almost a month ago. She has talked to me twice.. and all of that was about the fact she hopes that i do get negative about the pregnancy at one point or it will make her look like a total bitch. She hasn't once asked how I am feeling?... or when is your first OB appt? How is working so much and being pregnant? considering i work more hours then her. Nope. Okay enough talking about this... it upsets us.