Need to vent!! So frustrated and hurt

So today at work I had mentioned that I might not be there on Christmas because of the baby. I am due in January but my doctor is a little concerned because of how low she is sitting. She said I could deliver early. That's what every first time mom wants to hear but anyway I had to go in just recently because I was having severe cramps. She checked me out and everything was good but she did say that I needed to relax because if I don't baby will be here early. My supervisor literally got mad at me and said there was no way you could deliver that early that's a whole month early your not even really showing so you will probably go past your due date anyway. For one I am so sick of being told I'm not showing enough it makes me feel like I am doing something wrong and it just causes more stress for me and baby. I also don't know why he would get mad I am being honest with him about my pregnancy so he can be prepared for when I'm not there on my leave. It's hard to be excited and share things about my pregnancy when other people continue to call me a liar or criticise my body.

Sorry it's so long ladies just hoping to find someone who is going through the same thing to talk with.