long root coming out of bottom of pot

there is one long root coming out of the bottom of my pot I didn't thnk it'd needed to be transplanted yet but i could be wrong. its a clone thats been in a farily sized pot for almost 2 months now.

should I transplant it to a bigger pot? or is this normal.. its not a huge root about 3 inches coming out the bottom.. no other roots are comung out;

just leave it if it's in that big a pot

sounds like a healthy root system to me
gl with the grow