Oo, totally normal yan, mama! A few of us first-time moms were worried about the same thing kaya I asked our OB, and she said yung belly softness comes and goes depending sa position mo, kung kumain ka, at kung relaxed ang muscles mo, hindi automatic solid yan lagi hehe. At 10 weeks, your uterus is still relatively small pa, so sometimes it feels softer when you're lying down or after you eat, pero sigurado kami na may baby in there na lumalaki! But since you're on your first pregnancy, best to mention it sa next checkup mo just to ease your mind, doctors are used to these questions talaga.