could you tell how does a child’s perception changes with regard to single/ divorced parents?

Are first borns more strict with their own kids or the reverse.
Are middle kids harsher disciplinarians?
Do Youngest spoil their own kids?
I wonder if there is any correlation between birth order and parenting style.

How early in pregnancy can hormones effect the woman’s mood? Can it happen in the first few weeks of the pregnancy

I am currently living with my fiance. I’m wanting to enter a motion to change parenting time. Will living with another woman w/out being married effect the outcome? My child’s mother obviously doesn’t like her, but there have been no major problems or fist-fights between the two of them. Further more the interaction they have infront of my child is always civil and cordial.