Help! Spotting @ 6 weeks

In the middle of the night i woke up to go to the bathroom and there was blood when i wiped. It was red (new blood) although not enough to use a pad. I had no cramping and it's been 15 hours since it happened and haven't had any spotting since. I tried calling my doctor but can't get a hold of them. What should i do? ? I'm a first time mom and I'm scared and alone. Hubby is away this week and i live far from my friends and family :-(