If its not painful it should have nothing to worry about, its likely your baby there. If that bump hurts, consult your doctor, but could just be mild like some organ being squished there. Right side of your abdomen has lots of organs (like liver for example).
Normal! It’s baby’s position. Sometimes baby is in there sticking his/ her bum out. Looking at your gestation week your baby could be on his/ her way to turn head down hence the awkward bump in your belly.
it may be baby’s position just happens to be there at that time. don’t think you should worry about it. it’s normal.