Is this ture love or is it just in our heads?

Ok so me and my gf have been together for a mouth or so now and im pretty sure were in love cause we always say i love u to eachother and we have a lot in common we like all the same things im into motocross racing and she is to we both like country music we both like bruno mars our fav bruno mars song is grenade our fav country song is somewhere with you by kenny chesney we both want tattoos when were old we want to grow up and have a family with eachother we have talked about moving in with eachother when we get older how many kids we want and names and we are 15 years old if that helps at all