Neg Blood But Maybe Pregnant?

Ma

So I ovulated Dec 19th. Went to the doctor today to get blood test, it was negative. I have VERY irregular periods since coming off of BC. I know doctors count CD1 as day 1 of pregnancy but if I ovulated on Dec 19, I had one day of spotting on Dec 29. I guess I’m only about 3 weeks along. Is it still too early to test?

I had VERY light (only when wiping) brown and pink spotting for 4 days Jan 1-4. I’m usually a harsh period kind of person.

I’ve had a miscarriage before and they said I had low progesterone then.

I don’t want to set myself up for heartbreak but idk what to do. Am I jumping the gun too much? I know I need to wait and relax but I just want to know! Any guidance?