When someone touches your belly, it can cause your baby to stop moving. This is because when you are touched, your body releases a hormone called oxytocin. Oxytocin is a hormone that is responsible for bonding and attachment. It is also responsible for the let-down reflex in breastfeeding. When oxytocin is released, it can cause your baby to stop moving. This is because oxytocin can cause the muscles in your uterus to contract. The contractions can be strong enough to stop your baby's heart from beating. Oxytocin is also responsible for the contraction of the smooth muscle in your blood vessels. This can cause your blood pressure to drop and your heart rate to increase.