I've been signed off work for two weeks with stress

work related not related to the pregnancy (although the small green olive sized guy/gal was of course a factor in me stopping trying to put up with the shite and just temporarily get the hell out of there and consider my options)
On a scale of 1 - Absolute Dickhead, how much of a cheeky wotsit would I be if I started going for other jobs and should I get it pull a Cilla "surprise surpriiiiiise"
(I'm in the public sector and not planning on leaving my organisation because no chance am I sacrificing the maternity entitlement I've earned through my years of service because someone else is playing silly buggers)