hi there, yes I think you should consult a doctor. its quite uncommon that your boobs would be producing milk at such an early stage if you are pregnant. If you are pregnant, a home pregnancy test would be able to picked up positive from the day of your missed period. Unless you're so far along that a home pregnancy cannot detect due to a "hooked"/out of range effect. Best is to consult a doctor to confirm! take care!
Yes please check with a doctor!