I need to know what effects if any these meds had on the development of the embryo. I'm trying to decide between carrying or aborting.

Have you tried GOOGLE?
phentermine and pregnancy - Google Search (http://www.google.com/search?hl=en&client=firefox-a&hs=XhW&rls=org.mozilla%3Aen-US%3Aofficial&channel=s&q=phentermine+and+pregnancy&aq=f&aqi=g1&aql=&oq=&gs_rfai=)
&
prozac and pregnancy - Google Search (http://www.google.com/search?hl=en&client=firefox-a&hs=j2B&rls=org.mozilla%3Aen-US%3Aofficial&channel=s&q=prozac+and+pregnancy&aq=f&aqi=g4&aql=&oq=&gs_rfai=)

That's something you need to talk to your dr about asap. Your dr needs to know what's going on with you.