well.... you are currently only taking 3 classes... most would consider that a light load...
you stated that you hadn't yet taken your chemistry classes... do you just mean organic or do you mean both...
if you are talking about both then you have 2 more years of classes unless you can get them in summer school.
how badly are your grades going to suffer?
have you sought counseling for this?
at this point in the semester will it just be a drop, a "W", or a "WP" or "WF"?
which classes are you thinking of dropping and what will you keep?
What else are you doing? working full time?
are you sure pharmacy is what you want to do?