Hi Sterla I also think you may be feeling the pressure of bubs. I am getting that feeling as well since last week (week 15) about once, sometimes twice a day. When it happens now - usually when I'm lying down - the spot goes really firm/tight and my tummy raises a little and then it goes down again. It's exactly as you've described, pressure, but not painful in my lower tummy. I'm convinced it's bubs and my DP has even felt it.

Congrats on your pregnancy as well!