Its perfectly normal to worry about its movements! At 33 wks, I still worry! The further along you get, obviously the bigger he/she is and the less room they have to move. Mine doesn't have a lot of room left, but still worry if I've made my 10 movements in 12 hours (per the kick chart). At night, I try to work out if what I can feel are movements or b/h. most times it b/h unless the babys lying sideways and flying like superman.

Enjoy your pregnancies!