Should I be concerned

Hello

Haven't posted in a while but in 29&5 and resting in bed while baby stretches and kicks. Its super quiet no noise except the tick tocking clock.

My baby stretches really big in my tummy and then I heard a tiny pop but it was loud enough to hear. He stopped moving for a few minutes and began switching positions after while.

Should I be concerned he hurt himself? Is it possible for a baby to sustain injury in utero?

Anyone else experience this before?