I had such an easy pregnancy that a lot of the time I just didn't feel pregnant. It was really only in the third tri that I felt it. If it wasn't for my growing bump & the scans I just wouldn't have known it.

Don't worry about people not commenting on the pregnancy. You are at a stage when a lot of people would be thinking "is she, or isn't she?????" and aren't game to say anything.

I had to tell a number of people at my work that I was pregnant as they hadn't noticed. I know how stupid that sounds but they really hadn't. I was further along than you are now. I used to wear loose tops to work and they just hadn't noticed that those same tops were no longer loose (I'd always had big boobs & the fabric draped over them nicely). A couple of the guys at work didn't even realise I was pregnant when I had about 6 weeks to go. All the women in the office thought it was histerical.