Anyone relate?

Since announcing my pregnancy, I feel like everyone has told me what is "normal" and "not normal." I hear things about belly size not being big enough, or too big, and about when I should be feeling movement and when I should be able to feel my uterus or not. It makes me worry when I hear that and I don't meet "normal". Should I be concerned if I feel things later than others? I don't know whats accurate and I only see my dr. every 4 weeks. Gives me lots of time to worry!