Is it necessary for blood to come out of your vagina the first time you have sex?

I can be a lot not a lot or none

I assume you're a female, and the first time you have sex you will feel a little discomfort and there may be a small amount of bleeding but millions and millions of women have gone through it so...

yes if your a virgin or on your period

The males generaly can be expected to always orgasm< however this is not always the case for the female. It depends on her state of mind and on the performance of the male

yes its normal