10 dpo - help

Hello

I am 10dpo today, and I tracked ovulation this month with “clearblue ovulation test”, and had sex the day I got the the smiley.

I have been having symptoms the last 5 days: so much headache, nausea during the day, pain in my lower stomach (cramps), and just very tired and not in the mood at all.

Today when I woke up and wiped at the bathroom I had some pink/red blood 🤦🏼‍♀️ what could it be? implantation bleeding? Because my period is due in 4 days.

Btw: I tested with a normal pregnancy test, it was negative, but not with first morning urine.

Has anyone gone through this, and ended up pregnant?

Help meeeeeeee :(