FTM... Bump got smaller?

Manon

So I’m 15 weeks and 1 day. I really haven’t been showing, and my stomach is pretty flat. Think it’s due to having a Tiny bit of abs and this being my first child..I’m hoping. I didn’t feel a little tiny hard bump right above my pubic area when I touch it. Now this morning I don’t feel it. Crazy I just had a dream that I had a healthy ultrasound. My 9 week appointment went well, but due to costs and waiting for my new insurance card, I haven’t been back to the doctor yet. Hopefully I get my card by the end of this week. I still experience minor cramps every once in a while. Nothing too bad. No bleeding experienced. Should I be nervous?