TMI - Brown clots after missed period

Hi ladies!

AF is currently 10 days late and I believe I have been getting very faint positives the last couple of days. Too faint for me to believe I'm pregnant but I have posted polls and have had people agree there's a vvvvfl.

I had some cramping last week but nothing really since apart from what feels like pulling where my ovaries are.

Last night my husband and I had sex for the first time since before my period was due and this morning when I wiped there was brown blood.. So I thought pesky AF had arrived! Only I haven't had any bleeding since and usually the start of my period is quite heavy. Has anyone ever experienced this? I've got a doctor's appointment booked but it's not for 2 weeks time.

(It can't be implantation bleeding and the photo was taken at 5 minutes)