Im16 years old and me and my boyfriend have already had sex 3 times and i didn't bleed for any of them is my cherry is popped if i didn't use tampons?

Yes, but...: The "cherry is popped", but that is an ongoing myth. In the modern world, one should not be thinking of cherries (except the bing, ranier, and other varieties found at the farmers' market), and one should not be thinking of "popping cherries". So, a person is a virgin until he/she has sex for the first time. It is normal for a woman to bleed a little and it is normal for her not to bleed at all.