Brown discharge/blood, 9 weeks pregnant

Em

Hi all, yesterday (Monday 6th) I developed a migraine at work and went to the GP immediately. He booked me off today. This morning (Tues 7th at 6am), I went to the loo and noticed brown discharge on my pad (I still wear liners and pads because I'm on progesterone pessaries and it ruins your undies). My gynae is an endometriosis specialist and he is in surgery on Tuesdays, so not sure if I will get an appointment with him today. Should I find an alternative doc today to do an ultrasound? I've already had a scan and all was well at 7 weeks 2 days. Today I am 9 weeks 1 day. Freaked out, but not sure if I'm overreacting. My hubby seems to think I am. Advice/reassurance/real talk, please?