Like the other girls say, baby is well cushioned inside, abut call your Dr, they may send you to hospital to get checked out. Im nearly 36 weeks and at 34/3 I had reduced movement so called NHS24 and they sent me to the assessment and triage department at local labour ward, and they monitored me for over an hour, done a trace scan for heartbeat which was goimg stronp and one for movement which didnt show much so they kept me in overnight and until tea time next again day, on this ccg machine until they were happy with the amount of movements baby was making. Your doc should get you checked out, and you won't be wasting anyones time by making sure everything ok. Hope all goes well x
Baby is well protected in there but it wouldn't hurt to let them check you for ease of mind and to make sure everything is ok. How long ago did it happen?
You should be able to call your doctor or the on-call line and let him know what happened. Probably not an issue, but better to hear that from him than to worry yourself about it. ;)