My girlfriend is pregnant. Is my life over?

My girlfriend of 8 years is 7 weeks pregnant, total surprise. I have this overwhelming feeling that my life is over now. I feel like there is a countdown for the next 7 mos. and when it's over, so is my life. We're both 25, love to travel and have fun and I feel like it's coming to a premature halt. Can we still have fun and enjoy life like we used to?