@vacohp Here’s my understanding:
undergrad + mcat/gpa -> med school + USMLE I & II + clinical evals -> pediatric residency -> pediatric cards
Yes, it’s a career/sub-specialty. Re: pharmacy, I don’t know if there is a “pre-pharm” in undergrad. Most pharmacists (but not all) did undergrad work that heavily resembled pre-med. Pharmacy school is like med school (normally 4 yrs - done after undergrad - but there are some accelerated programs) so if you want to include pharmacy in that pathway, then you will have to add an additional 3-4 years to what I showed above. The only people I know that did this were pharmacists that wanted a career change.
The pre-requisites and degrees/majors for med school are probably covered elsewhere so I’ll not comment here. Just find a college where you feel you belong and can excel at learning.
You say you like pediatric cards… any reason to pick it over adult cardiology? Pediatrics can be more challenging than salaries indicate and pediatric cardiology deals with some very complex situations. Was there something in particular that drew you or do you just want to work with children?
[EDIT: Jugulator20’s comments are spot on. I’ll leave mine in for the sake of coverage re: pharmacy and reiterating some points that I’d recommend you consider]