Does'nt matter how far it get inside. Probably you will get part of your hymen for a long time. Once the hymen is broken it does'nt dessapears in the nothing, it just become tear skin at the entrace of your vagina.
It seams you are very new to sexual act. Becareful of unwanted pregnacy and STD. Care your body, keep it clean, ask the same to your partner and enjoy it. First time sex can be and in many ocations use to be painfull. Your body will be accepting your partner entrance slowly. so ask him to be kind and not forcefull.