No, honey, you can't pretend to be a virgin again. Your hymen isn't something you can regrow like that. Just tell this guy that you have had sex before. Would he have a problem with that for religious reasons? If so, just explain to him that you didn't have the same beliefs as you do now. Have you already told him u were a virgin? Sit him down and explain that you lied because you didn't want him to leave u. Tell him you need to be honest with him about this before u are married. You can't start a marriage with a lie. It may not seem like a big thing now, but it will make you grow apart. If he can't deal with it, he is shallow. FYI-after 6 years, your hymen won't grow back but you should be pretty tight again. If he is a virgin, honestly, he probably won't know the difference. But I would recommend telling him. Good luck!
