Can someone help me figure out how far along i am?

In November was my last normal period. and then in December i got a UTI and i was having spotting where the green check marks are and i had like 1 and a half days of heavier spotting? I’m not sure if that’s my period. But they tested for pregnancy on December 9th and it was negative and i just tested January 4th and it’s very positive.

Should i count the spotting as a period? it was so light it was barely noticeable and one day it got a little heavier and i used a tampon and it didn’t even get fully soaked.

i’m very confused and i need to know when to go to the doctor 🙃

Someone please help me, thank you!! ❤️