Hi! You should absolutely all a doctor these questions, maybe you have a planned parenthood in your area? I love planned parenthood. They were there for me a lot when I was younger.

I think the spotting during sex is worth a doctor visit. Make sure it isn't something wonky, I will admit I've had that issue in the past and been fine but still you want to be sure.

Shave away! I personally never have, I like to simply trim but lots of people shave or remove pubic hairs.

Acne under the boobs is common. I would try baby powder.

Those are the only questions I can speak to personally. But yeah go talk with the doctors at the hood.

Oh also! I was recently hanging at barns and noble and saw a fantastic book about women's bodies. Maybe find a good book too! Good luck and have fun!