Hello! I think it’s better to check with your Gynae on this. For me, I had light spotting (dark brown) at around week 6-7 back then. My gynae said as long as it’s not bright red and the flow does not continue, I don’t need to see him. But if it becomes heavier & bright red, I need to see him asap.
This one better not wait please go see your doctor or A&E now. Any bleeding in pregnancy needs to be checked out straightaway, especially since it's your first time and you'll feel better once a doctor has seen you and ruled things out. Sending you lots of support right now.