This makes no sense..

Kate • Mum to a beautiful 2yo boy ✨ Pregnant with baby #2 💙💕

I went and had a scan and a blood test 2 days ago and was told that I had ovulated in the last couple of days and to have sex now to try conceive. Anyway, today I just started spotting and it looks like my period is here.... that makes no sense.. I’m 99% sure this would not be implantation bleeding