Worried about my baby, I got up wrong !!

So I was laying down in bed realized my charger was in the next room , I got up to go get the charger but I got up wrong like I rose up, imagine doing a sit up that’s how I got up. When I got up in that position I felt like a very bad pain in my uterus like I pulled something or I was pulling something, I instantly laid back down in pain when I laid back down the pain went away I am 19 weeks pregnant scared i hurt my baby pulled a cord of sum sort or did something that was NOT supposed to be done after the incident I feel fine, nothing is hurting, help