If i was 6 days late then had a 1-2 day cycle followed by 2 days of spotting, could u be pregnant?

It doesn't sound: highly suspicious for pregnancy, but you could be. Especially if you had sex during your predicted ovulation time without contraception. I would go ahead and check a home pregnancy test, which are quite accurate. If negative, it is likely just a hormonally induced alteration in menses and your normal cycle will likely return. Good wishes:)