Given the data you provided, it seems likely that the tampon you tried to insert was not the appropriate size for you. There are mostly three tampon sizes: normal, super and mini-tampons. You might want to try a mini or the smallest size you can find (these are the ones that are recommended for virgins).

Also, it might be a case that you are not relaxed and do not follow the direction of the vagina while inserting the tampon: you should lie down, relax and try to insert it up inside and towards the back. You might even want to practice inserting them when you don’t menstruate. Moreover, there are various forms of hymens and even rare kinds that are not susceptible for inserting tampons without breaking them. However, when you have your first sexual intercourse, nature will have its own course, with or without pain/blood (this is quite individual), so you should definitely not worry about this. You might want to discuss this issue with your family doctor or your gynecologist.