a lady in my vault has been pregnant for about 7-9 days i have enough room and other people have no problem i don't know whats going on please fix this really annoying bug

Same here! Women has been pregnant for days! In the mean time I've had at least 6 births from other women!

Having the same problem. 8 dwellers stuck on being pregnant for at least 3 days now. 151/176 capacity.

Sometimes it crashes as well and some have their health bar shown even without clicking on the dweller especially when they are on training. i restart app then it disappears.

This is known Issues, we are waiting for a Fix'es.. http://www.gamesas.com/topic/1525012-updatesfixes-are-comming/