No need to rush if it's your first bb. I had 見紅 at 2:30pm but I didn't feel regular pain (every 15 min) until 6pm. You may take your time to take a shower and eat something (my doctor advised me to eat better be congee but not solid food) before going to the hospital. However, I think you need to go to the hospital in a couple of hours because some people may have "water leaking" a few hours later, though I didn't until my baby was about to born (my doctor helped me break it).