Call your midwife ASAP. Baby isn't running out of room, that is false information. Please look up kicks count. It's a UK organisation with all the updated correct information, tell your pregnant friends about it. If baby's movements have become less or changed then you need to call your midwife to check all is well with baby. The further along you get in your pregnancy baby will have less room but should not move less, the types of movement may change,for example you will feel more pushing than actual kicks. All the best hun. Wishing you a healthy delivery x
As you get farther along, baby had less room to move, so movements become less frequent. I would only be concerned if he wasn't moving at all. But call doc just in case
No harm in calling your doctor. Hoping it's nothing, but it's better to check. For your peace of mind as well :)