laser tag...could get crazy with people running around in the dark. Bowling...i have read thats its great if you bowl all the time before pregnant but it could put strain on you or baby if you dont bowl a lot. if you do go i would advise useing a small ball
Haven't tried laser tag, but that sounds like it could get risky cause it's dark and people get a little nuts.
I've tried bowling and I ended up hurting my back cause I strained myself too much so I wouldn't recommend it.