BFP but bleeding

So I got a BFP on 04th October. My last period was 13th to 16th September. The BFP was STRONG, but I'd had a d & c on the 21st August. So I know all my cycles are totally out of whack.

I'm now bleeding - not much, but some - not bright red but has been very dark brown or rusty coloured.

I have an appointment at the hospital on Monday - do I go in today or just wait it out and if I miscarry then so be it.

Thanks x