There is a very good video that answers your question in detail on youtube, here is the link: https://www.youtube.com/watch?v=1ikXim4wevc
It's by the youtube channel Adam Ruins Everything.
Don't be scared. This isn't true. Many but not all women bleed their first time but it's only a little bit of blood. It will look like more because it will be mixed with semen. It's just from the breaking of the hymen, a membrane of thin tissue. Not all women have a hymen or it doesn't completely cover the vagina or it broke in some other way (horseback riding, other vigorous exercise, etc.)
Foreplay is important in that it releases natural lubricants in the vagina, which make penetration more comfortable. Skipping it doesn't necessarily mean you will bleed but you may be uncomfortable.
Penetration should not hurt after your first few times. If it does, please see a doctor. Sex is meant to feel good and with a caring partner, it will.
There may or may not be blood, but the first time is almost always uncomfortable if not outright painful. It generally gets less so the longer you've been at it. As one reply said, foreplay is important, though, and can make even the uncomfortable first time more pleasant. You aren't likely to bleed past the first couple of times, but it is possible if proper preparation isn't done by your partner, especially if they are well endowed. Don't feel pressured to engage in anything you aren't ready for. If you are comfortable with your partner and really feeling ready for it, it will be better.
i cant explain this in english but is almost impossible not to bleed the first time. some girls dont cause the thing is already broken from an activity(for instance:ballet) or isnt able to break(so u may have blood the 2nd time).
about the pain: if u r not masturbating then prolly gonna hurt. if u do, then its okay.
my first time didnt hurt but it was uncomfortable.
p.s. when u r about to do it make sure to put an old blanket on the bed cause otherwise u r fked (trust me, at first i didnt realize that i was bleeding but when i looked at the bed after the bed sheet had turned red.)
Hey is it true that when girls first time do that they get blood. I just read about it in a manga they say it's because of hymen. After knowing it I am scared. Won't it hurt like hell?? Oh my god now I just dont wanna do it ever