Should i get marry with my best friend? 😕

I know this guy about 7 years. I had two relationships and "my best friend" was always there for me. To make it short, he knows me more than anybody else in the planet, my mother included! We start dating around 4 years ago and at the beginning the sex was really good and since he is my best friend I can talk to him about everything. He is nice but not romantic at all. We do not go out, he never wants to try something new on bed, no movies, no party, just work, work and work..  Im so bored with this relationship but he is a good guy and my best friend! I'm getting old and I feel that if I don not start having family soon I will probably end it up lonely. Don't want that!!!