A little worried

I went on vacation to compete for my college. I'm in Anaheim and went to Disneyland and the beach. The waves were really hitting hard, and when I realized that I turned away from them so they would hit my back instead of my belly, but some still hit my stomach. It was pretty blunt force. I'm only 14 weeks, but I'm really worried something might have happened. I know the placentas are still intact because I'm a nurse, also surrounded by nurses, and I know the symptoms very well and have none. I'm just worried the force of the waves might have done something to the babies. I have an ultrasound monday when I get home and I'm nervous for what I'll see.