Iily,
I don’t really think you should tell him your “number”, if you start a relationship with him-“number”/experience conversations are meaningless, as they don’t add value to anything-if I like someone, I won’t stop liking him cause of his numbers, if he treats me right, loves me and etc.
As Jade said, your past doesn’t make you unworthy of love and affection – you just acted the way you knew. And when you’re 14, well, you don’t know much (you don’t even when you’re 23 or 30, or 40, as certain learning experiences only come with age). You want a relationship now and you’re willing to be faithful and etc., so just let yourself love and be loved. Don’t listen to that inner critic that tells you that your past prevents you from getting the kind of man you want. If a certain guy will only be willing to see what you were not minding what you are now, well, he is not good for you.