She has the right to enjoy her life as she chooses (marrying Nick Cannon, for example). Just because she may be pregnant doesn't mean her career is suddenly going to end.
Yeah itzs hard to say whether she is or not but I find it odd that all of sudden she is wearing clothes but yeah if this is true then the E=MC2 era is really over though I have to admit it was over once TMB was a hit. Well let's the next album she will choose better single choices!