If you are 23 weeks pregnant and walk into the corner of a cupboard with your stomach will it harm baby?

The baby is well protected by the amniotic fluid and the strong muscles of your uterus, so it is unlikely that walking into the corner of a cupboard would cause any harm to your baby. However, it is always best to err on the side of caution and avoid any potential risks. If you are concerned, you should talk to your doctor.