Spotting red and 27 HcG at 15DPO

Hello! Looking for some opinions and similar experiences.

I've got PCOS and rarely ovulate. I did last month on CD22 and managed to conceive.

I tested positive on 10DPO with slight line progression on 11DPO and a positive digital (early clearblue) on 12DPO. From 13DPO I started seeing peachy coloured discharge which has progressed to brighter red spotting - visible every time I wipe for the last 4 days - and occasionally dripping. I'm still getting faint but positive tests. No pain - just gentle cramping occasionally. Still getting positive pregnancy tests but I know I would do anyway, even with a chemical.

I've gone to A&E and had an ultrasound which obviously didn't show anything yet - they said my uterine lining was looking thick and the slight cramping I'd got was from the ovary I'd ovulated from which was normal. I am awaiting my 48 hour HcG follow up... Aware that the number is lower than ideal.

Has anyone else had a similar experience that they could share that ended in good news?

(Being monitored for everything from viable to ectopic and chemical at the moment).

Thanks so much in advance.