First Baby On The Way!!!

Hi everyone so I am currently expecting my first child and my partner and I are SOOOO excited!

Anyways! Since this is my first baby I have A LOT of questions and I was hoping those who have been through this before could answer some of mine!

1. When's the first Ultrasound?

2. When do I find out the gender?

3. Twins run in my hubbys family! How soon would I know if we were having twins?

4. Best Prenatal Vitamins?

5. Am I allowed to colour my hair?

6. What foods do I stay away from?

7. How many ultrasounds happen throughout the pregnancy?

8. What are some baby must haves before they are born?

Thank you all!!!