I bleed after sex every time?

This doesn't very alarming. I suppose its possible that you are getting some slight tearing even if you are not hurting. One way of making sure you are wet and aroused is to receive oral sex if you are comfortable with that idea - or maybe you are doing that already. Do foreplay until neither of you can wait any longer. I know its only a figure of speech but don't think of sex as losing your virginity. You have not lost anything. Sex should be a sharing and giving experience.

Spend more time on foreplay and use more lube. The issue is the lack of lubrication and/or the tightened vagina. When you're fully aroused, your vagina expands from about 3" to about 7" (dilates wider, too) which allows for easy and comfortable penetration. If you're lubed up but not fully aroused (typically takes about 20 minutes of foreplay, on average), your vagina will be more constricted, and thus forcing something in with create friction, pain and blood.

Take more time with foreplay. If you aren't wet enough he will tear you on the inside and cause bleeding. This is what has been happening.

You may need to visit a gynaecologist.

You seriously need to use a lubricant, he's tearing your skin inside during sex. Doesn't matter if you can't feel it, there's tearing going on and that means you can get infection through that too.