Feeling pretty badly...

So my boss requested that I change my top when I go on my lunch break today...he said the top I have on is unprofessional and "looks like a Christmas sweater" Um? Ok...it's Friday for one...#2 I'm very limited on clothes I feel comfortable wearing to work right now. I'm 24 Weeks pregnant. I work as a receptionist at a chiropractors office. I'm so hurt right now. He has no idea the struggle I go through day to day. Pic shows the top I have on that he didn't like... thoughts?