U soon will.if you lay on your back u can see all the action of the baby moving lol and if u don't, hold your breath for a few seconds then let go he or she will start moving.
I started seeing my belly move at 25 weeks.. it looks like baby is trying to get out! Lol..
I did around 21 weeks. Like Jessbabe said, it looks like they're trying to get out already! And they're really hard kicks, too.
I'm 19 weeks on Thursday so I'm almost there lol.