Yoga ball

Kr

I'm 35w3d with my second and have been on my yoga ball bouncing (for the first time), I'm having some soreness/cramping in my back every now and then with some sharp pains in my belly too. My son has already dropped so could these be Braxton hicks? I had a c-section with my first and didn't every really experience contractions. I'm able to do vbac with this one and feel like I have no clue what I'm feeling. Any help would be great ☺️