I work for the NHS in admin.
I was taken on in April to do evening shifts (4:30-8 Monday to Friday) but never actually did them, I've always done 1:30-5 Monday-Friday instead. In June I was offered three full days, 8am-4:30pm instead which I accepted but was told I couldn't start those until they got a replacement for me/my old shifts.
They've now got a new member of staff who is doing 1:30-5 Monday to Friday but once he's trained up he will be doing evenings,4:30-8 Monday to Friday and I've been told I will have to do these shifts alongside him until they find yet another replacement at which point I can do the three full days I was offered.
The timescales being talked about are that I'd be on the evening shifts for at least 16-20wks (by which point I'd be due to start maternity leave).
My contract doesn't actually state evenings, it just says 17.5hrs part time.
My circumstances have changed since I got the job (in January) and started the job (in April). For one, I'm pregnant. I'm pretty much asleep by 7:30 and I get bad acid reflux and heartburn for which I've been told not to eat after roughly 7pm, which would be mid-shift and I don't get a meal break. Transport has also changed and there is no bus home until 9:10pm so I would have to sit in a city centre bus station, on my own, for at least an hour on the dark nights. I'd get home at 10pm, semi-rural area and my walk home from the bus is along fields, etc. I'm not one of these who sees a mugger behind every lamppost or a rapist behind every tree but (much as I hate to admit it) being pregnant makes me vulnerable to a certain extent and I'd be putting myself into an additionally vulnerable situation.
Added to this would be the sort of weather you can expect in winter - ice, snow, etc - and the walk from work to the bus station is all downhill with not many people around at that time of day. If I slipped and fell (a possibility with the centre of gravity and balance changes) there likely wouldn't be anyone around to help me.
And finally, my family life has changed since I took the job. DS is now 4yo and about to start school. If I was doing these shifts I won't see him at all Monday to Friday as he will be at school when I leave for work and in bed when I get home. I won't see DH either as he will be at work when I go to work and in bed when I get home (he has a 5am start so goes to bed by 10). I'd be getting in after 10pm to a sleeping house, tea at that time of night all on my own and then straight to bed too, no time with my family, not even an hour or two. It's beyond soul destroying. One night a week DH works until 8pm too and we can't get childcare for this.
I've explained it to my manager and offered a compromise of starting/finishing twenty minutes later/earlier so I can catch the 8pm bus. I still won't see DS and will only get an hour each day with DH but it was at least something.
She rejected it.
I have my health and safety pregnancy risk assessment in the next week or two and I'm going to mention it to them to see if they can broach an agreeable compromise but if not I'm stuck. I can't do the shift and they can't/won't change it.
This is why I'm looking at all the options.