No one is happy for this baby

I'm 26. We planned our pregnancy. I am five weeks. A year ago I started planning out the announcements and everything after we had a miscarriage. Today, I took a video and acted like we were taking a picture of my fiancé and his mom. I counted to three Andi stead of saying cheese said we're pregnant! Silence. I then asked my fiancé to explain and she said oh I already knew. No she didn't. That was her saying I was fat. Everyone responds with okay or oh and what are you gonna do? My fiancé stared at me. No hug nothing. I don't get it! We wanted this baby and now everyone acts like they didn't