anybody can help me??

I called my ob and he's not answering and i didnt want to rush to the er if its not that serious!! because I've been reading online that its not as long as its not that much. SO i went to pee and i wiped and noticed blood... not alottt but enough to scare me. so i put a pad on to see how much or anything because i googled if its enough to fill a pad its all bad. but if not its okay..... ill be 7 weeks pregnant on sunday. anybody can let me know if i should go to the er??? or is it ok to sleep the night off and talk to ob in the morning? ... let me know something. woulda took a picture but it all happened so fast.