Late period

After my daughter was born and breastfeeding AND WEANING AND STOPPING my period has been a normal 25/26 days with 7 day flow🙄 (she’s almost 20 months).

We are ttc baby #2 and my fertile round was 6-12ish. Just missed one day there.

Well it’s now 6 days late. BFN. Last week I went to doc and bloodwork and urine test were negative😞

Now yesterday and today I had spotting just like a couple minutes-light pink a little brown and one red spot.

I’m thinking great my period we can at least reset but doesn’t seem like it. I’m BEYOND IRRITABLE, nauseous, cramps off and on, back pain, and my hips hurt. I’m a wreck and super emotional.

Could the spotting be my period? Any chance I could be pregnant? Or anyone gone through this😑