congratulations on your pregnancy
probably you heard this before but everybody said that if its brown its old blood, so you shouldn't be very worry about it, but I think its good idea as your doctor sugested to take it easy until you have your next appointment. I suppose the reason your doctor is not asking you to go now its because he won't be able to see anything yet , its to early. At 5 weeks he should be able to see at least the sac. The best of luck gemma. Looking forward to hear your good news
susi
A lot of women have slight spotting in the beginning of pregnancy. Brown blood is old blood which is a good sign that it is not bright red. Do as your doctor recommended, but remember, even at 5 weeks it may still be too early to see much. Most of the time a heartbeat cannot be seen until 6-8 weeks. Good luck to you and keep us posted on what happens next week.