You don't. There is MUCH more to having and raising a child than YOUR desire for a little brother or sister.
Your mother's age, health, financial situation, emotional welfare are all matters to be considered. If you're interested in being a big brother or sister, you can act as one to a child in your neighborhood or to a younger cousin.
Maybe you can by convince her you love her and that drinks are good to drink.
...just hide it from her...
You try to convince her that you're right.
Pleasure her with your toes
The way to convince your mum to let you have msn is to say i will keep my room clean, i will use it responsibly please mum there you go there is your answer. Say to your mum that you'll be responsible on it, only accept people you know and if someone wants to know info about you, report it or block them.
be nice to them and persuade them, ask them.
No not yet, but she is pregnant
tell her about the benefits of getting it
You have to be able to be pregnant(have your period). And then get pregnant.
Convince her that her son doesn't
Try to think of reasons the kitten will benefit the family. And harass her.
This depends on what your mom is like. You need to be able to understand why she does what she does before you can attempt to convince her. Depending on what motivates her worldview, you might not be able to at all.