Decreased Movement

Me

Any di/di twin mommas have decreased movement around 27-28 weeks? I seen my doctor Friday and told him so he is having me do a BPP non stress test ultrasound this Wednesday. Yesterday I didn’t feel any moment until late evening when I got some good hard kicks around 6:30 and so far today I felt a twinge this morning but that’s it. Should I go to the ER? Is it because they are running out of room? Should I be really worried? I’m 28+4.