Possible Pregnancy?

So I had my baby 10 months ago. I never got my period back and we just finished breastfeeding 2 months ago. I’ve been spotting for 49 days straight. I do have a doctors appointment but I’m assuming the irregular bleeding is due to hormones and my PCOS. We did have unprotected sex about a week ago. Is it possible I could be pregnant even though I’ve just been spotting consistently? TIA.