Baby bump?

I woke up yesterday morning and felt my tummy.. it felt harder and bigger. My first thought was "oh my God! I finally "popped"!!! I was so excited to finally have a baby bump. It was 6:20am and I really had to use the bathroom.. (which is a frequent occurrence, lately!) and afterwards, the baby bump was gone! lol I thought it was funny but I was also disappointed. I was also wondering if it was just a dream. Anyway, this is a photo that I took on Friday (at exactly 16 weeks) I think I was pushing my belly out a bit, or maybe it was the angle? I don't quite have a baby bump yet, I think it's still mostly fat!