what should I do?

I would be 6 weeks today. I have been anxious of something going wrong I last tested 2 days ago on Friday and got another BFP 2-3 weeks. Last night I started bleeding. It was more than spotting but not loads and loads, I'd say moderate but bright red and with a small clot. I have been in pieces ever since. Overnight there was no more blood but when I wipe there are brown blood traces on the tissue. As it is Sunday my doctors aren't open and I feel really uncertain about going to A&E after reading that they may not take it seriously and there's nothing they can do especially so early on. Plus it would break me having to explain at the desk what I'm there for. I have to go to work tomorrow as I am opening the business and have no other choice. Not even my family knows about this. If it's 100% miscarriage will there before blood? How long do you bleed for at 6 weeks? Also I've had no pain as yet just a migraine. I know in my heart I've lost my precious baby that I've longed for for such a long time but reading so much online about ladies who bleed and then go onto have successful pregnancies is giving me false hope. I know we're not doctors on here but any support would be amazing or if anyone is going/has gone through similar to me? I feel so alone. TIA.