Another little thing that made me think of Thyroid related problems re mum, was the hair at the front has a fairly wide parting, her own hair looks thin, a problem suffered by some people with Thyroid related illness.
So what if the hair piece was worn out of necessity, rather than fashion, this combined with the lack of money, could that explain why the hair would indicate a slightly different period to the one expected, if you catch my drift
Also she has probably had to take her wedding ring off because her hands are swollen & sore.
When I first looked at the photo with my uneducated naive eyes (that is before I learned about PMs) I thought the baby was disabled, possibly blind.
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Untreated" Thyroid problems in pregnancy can impair full & normal development of the baby to some degree sometimes resulting in fetal abnormalities etc.