When I first had sex with my boyfriend I didn't bleed, they say that usually you bleed on your first time, is something wrong?

No nothing is wrong with you!

Some girls don't bleed for other reasons such as ballet dancing, horse riding?

Are you active in sports or dancing ?

when i first had sex with my bf i didnt bleed, they say that usually you bleed on your first time, is something wrong?
No I'm not in any sports activities, no horse riding or ballet.

Every female is different so what you encountered was normal for you. There is no right or wrong about that - everyone is different.

Do you use tampons? They can tear away at your hymen and eventually break it. (thats the part of sex that makes you bleed the first time).

Every woman is different. I didn't bleed my first time either. In fact, I was raped at a very young age, and ignorantly began having sex shortly after. I didn't actually break my hymen until about 4 years later, and I wasn't having intercourse at the time. It was during foreplay, but not intercouse. There is nothing wrong with you, but make sure you are being safe. Always use condoms, and I would suggest that you also use some other form of birth control if you aren't already.

You might have already broken your hymen, I broke mine with a sex toy a while ago and freaked out because I started to bleed a little, but its not weird that you didn't bleed