Twilight, being an alicorn princess, would probably have a difficult time raising a child and ruling a kingdom. Being royalty, she may have a midwife or a nanny to care for her child when she's about royal business. But, knowing Twi, she would always find time to read with her child and play with them. Rainbow Dash would have left the wonderbolts on an honorable discharge and kinda be like the military mum. Her child may be expected to live by a code of self-discipline and honor. She probably wouldn't show much emotion, but Dash would be there to guide and motivate her kid when it's down. Apple Jack would be the down-home country-fried mama, that tries to raise her kids while also taking care of the orchard, basically making her the hard workin' job and family kinda mum. she'll pretty much work the ranch with the family and spend the evening at the table with everyone at the end of the day. she would make sure her children are raised on positive values and good, honest labor. I doubt Rarity would be much of a parent. Personally, she's very career focused, and having a child may conflict with her goals. i see her child pretty much being raised by nannies and her parents while feeling resentment and isolation growing up. Rarity may not even notice her child is growing up at all, but eventually wakes up to the fact that she wasn't there for her child and try to make up for past mistakes as her child tries to alienate herself from her mother. Pinkie Pie is the fun mum. She would hold epic birthday parties for her children and their friends who love the fact that they're friends with kids with an awesome mother. Pinkie would always be taking them to fun places and doing fun things with the children, even planning other parties with them. her kids may turn out to be as random as she is, but you may have one whose a black sheep that's not easily amused and kinda sees mum and the fam as wierd. Fluttershy would be the most motherly of all. She would be sweet and tender to the children, but may also feel a need to be overprotective and worry alot about them everytime they step out the door. She would, however, give them room to grow and not dictate their lives. Being much older, she's learned to be firm and assert herself. She will do just that when her kids cut out of line. nonetheless, he'll love them with all her heart no matter what.