To young to get married first and only girlfriend?

i was in a relationship at the age of 13 with my first love we broke up when i was18 because he cheated when i went away to school...1yr later i found another love in college he is the best thing that ever hapend to me. We have been together for 2 1/2 yrs on our 2nd anniversary he propose 2 me which falls on valentines day which was very sweet. i told him yes we both recently grad and moved back to my home town. we have great jobs am a little worried because i am his first and only everything he has never been with other women because he was always just cool with everyone he is a very people person. i fear he has missed out on alot. i gave him the opportunity to go and date but he accuse me of pushing him away and tells me he only wants to be with me. he is perfect he's everything i want in a man. we have now been living together for 9mths and its great.then he has his parents telling him he's to young to get married but my parents support us iwant to hear from both gender but men main