[Harmony♥]

1. Absolutely. The pull should help, but remember: everyone reacts differently to different things. Weight gain IS a side effect of most birth control pills, but that doesn't mean you'll experience any weight gain OR any other side effects for that matter. Each pill is different, so finding out the different side effects of ones you're interested in and asking questions to your doctor would be the best bet.

2. This is up to you. If you think your mom is going to be hesitant, make sure you explain that feeling you get when you're on your period: horrible cramps and other symptoms of PMS, including the heavy periods. Explain that you did your research on what you can do to help these symptoms, and being on birth control is one of them.

3. Exactly as I said above. Be honest with her. Don't run up to her and say "Hey, mom. I'd like to have birth control please." Make sure it's something you've educated yourself on so it doesn't seem like this is something you just came up with at the top of your head.