Coworkers making comments

So I I have HG and I haven't worked since I was about 5 weeks pregnant cause I have been so sick. Well now I'm 19 weeks and feeling a little better and only getting sick a few times a day so I've been looking for a new job! I interviews at 3 places and felt really great about each one, but I made the mistake of telling them I was pregnant and none of them ended up hiring me. So at my next interview I didn't mention I was pregnant and decided I would wait for awhile to tell them. Well today was my 2nd day of training and I am showing white a bit now. I wear an apron at work but I took it off before going to the bathroom and my belly was apparently very obvious. I came out and noticed multiple co-workers checking out my stomach haha then later in the night one of them was like "I don't know why I'm bringing this up, but I just love babies. Do you want kids?" as she glanced at my bump hahah. So I just go "yeah I'm actually having a little girl in November" and she acted all surprised like "oh I had no idea!" hahah, yeah right 😂 her and all the other co-workers that were there were super nice about it, and the job is an awesome fit and I click well with everyone so I'm gonna have to tell the boss tomorrow now that everyone else knows haha, I'm nervous to bring it up for some reason, I don't really know how to go about it 😬 and I'm just hoping they don't fire me cause of this, I was hoping I could hide it a little longer but my little bean is making herself known haha 😂