Desperate for help - going back to work but 8 month old refuses all bottles/beakers

[y2k1sophie]

I am going back to work in three weeks and my 8 month old will be looked after by my MIL and at nursery. She has been exclusively breastfed and enjoys solids three times a day. She drinks water from several different types of beaker.
She has never taken milk (expressed) from a bottle and after about 4 months I started trying beakers with no more success. I don't get much off when I express now so I have decided to offer formula from beakers when I am not around and breastfeed when I am. However DD isn't really onboard with this plan and shuts her mouth tightly when formula is offered and point blank refuses it.
When I go back to work it will be a mixture of 8 hour shifts, 13 hour long day shifts and 13 hour night shifts (DH will drop her at nursery before I finish so I'll only see her about 4 hours in a 24 hour period). There may be up to 3 night shifts is row. I hope she will drink milk if she is thirsty when I am at work but I am worried that as she settles into the new childcare arrangements she will also be hungry and thirsty and therefore distressed.
Is there anything I can do to get her to drink milk from a beaker? Yesterday I left her, a beaker and formula with my parents but even after 7 hours since her last breastfeed she wouldn't take any...

Hi, I've got no experience but wanted to bump for you. If she only had water from a beaker and solids, would she be ok with just bf ing morning and night?

I hope she will be ok on the normal days but when I am working 13 hour shifts or nightshifts I won't see her for such a long time I'm worried that she'll get really hungry and thirsty. I'm also worried that my supply will decrease to the point that she'll need formula as I can't see myself pumping at work.

I went back to work full-time when my DS was eight months old and he also refused a bottle and a beaker with EBM (never bothered trying formula). Don't worry about it - she'll be fine I got the nursery staff to mix expressed EBM into his food (where appropriate e.g. porridge, puddings) and give him extra yoghurts to boost calories and calcium and he was never at all distressed. Since she's taking three meals a day plus water, there's nothing to worry about. She'll make up for it when she's with you.