millie's eyes were bright blue when she was born just like her daddy's, but within weeks they had darkened a lot. and they always looked brown on photos, bizarrely! they have turned brown now, but only just become fully brown as opposed to ambiguous. and on photos of me and her together (i have very dark brown eyes) mine make hers look blue in comparison.
i'd say if after 3 months still bright blue chances are very high they will stay that way.
depends on the parents' eye colour too- there are technicaly only two colours, brown and blue. hazel is just a variant of brown and gray and green are just variants of blue. blue eyed people can only pass on blue eyed gene, brown eyed people may pass on a brown eyed gene or a blue eyed gene if they are a carrier (like me! and millie!) if one of your parents has passed you a blue eye gene and one has passed you a brown eye gene, the dominant brown will be your eye colour, but you're a carrier for blue so could pass on either to your child.
i'm such a geek lol this is so interesting to me
so with millie it was 50/50 and all down to me and what i passed onto her! i know i'm a blue carrier coz my mums eyes are blue. millie's a carrier too as my boyfs are blue. so coz she got my brown gene instead of my blue one its the one that shows up coz brown is dominant.
so if your OH's eyes are green (blue, technically) there is at least 50% chance of a blue eyed child. if yours are green/blue, chances are 99.9%. if yours are brown u need to find out what colour your parents and grandparents are
sorry for woffling