I have just old my ex partner that I am not prepared to accommodate his shift work job any longer. Some people might think it is a strange move, but I have had 23 years of working around the fathers of my children and I've had enough.
My youngest is now 13 and some might say 'she is nearly grown up - why now'. well, 13 year olds still need a lot of input and with working around someone who works ridiculous unpredictable shifts - I cannot plan anything. Expensive childcare is the only answer and I have to pay for it out of my income.
The problems are this, so I would say, think hard if you choose a partner who works shifts:
You cannot even plan an evening out or a class without arranging and paying for childcare.
You end up doing jobs that you are over qualified for and just fit in with the kids.
After a long while the fathers get so used to the idea that you are available 24 childcare that they just do not see it as a problem - because it isn't a problem for them.
You can plan a career, but it often doesn't feel fair on the child. You can feel that you are abandoning them with no one if one partner pursues a career relentlessly and then you do the same. I just ended up taking the hit and staying home more so that they would have some quality of family life.
You basically function as a single parent most of the time but without the freedom to make entirely your own choices. As a single parent you do have some other advantages in that regard. With this situation it really can feel that you have the downsides of both single and couple parenthood, because they come home and want to tell you what they feel you should be doing!
The kids don't like it - they like routine and they don't know from one day to the next what is likely to happen.
It is possible to drift in to a slightly depressive state without realising it. It becomes 'the way it is' - but in fact you are living a miserable life and just putting up with it. Nobody should have to do that for money or someone else.
I'm sure there are women out there who don't mind or think that the money is worth it, but I have met quite a lot of women in this position who are permanently dealing with low level stress and a borderline depressive state.