My experience with Nationwide was that my maternity + baby made them withdraw my offer of a mortgage with my DH completely.
Nationwide said, even though I had a permanent job with 3 months notice and enhanced maternity pay for 6 months.
Even though we had demonstrated the mortgage was affordable on DH income even if I wasn’t working.
And even though the childcare I had signed up to had a 1 month notice period whereas my job was 3 months notice (so I said, if I lost my job and couldn’t get another then I would have time to exit the nursery contract so I wouldn’t be tied into fees at nursery with no income).
so yes - lost our mortgage offer because I had a baby I could easily afford. They wanked around asking more an more obtuse questions for ages until we realised their affordability model is a piece of poo. (DH and are both work in finance and really don’t struggle to manage a simple cash flow model, unlike Nationwide apparently).
i wouldn’t go near NATIONWIDE again with a barge pole ever again as we nearly lost our house because of it.
DH applied to HSBC for a mortgage in his name only, and we put the house in his name. Got the offer online and couldn’t have been simpler - only took a week to have it all nailed down.