Apparently, the Pill back in the late 60s was still pretty new science. She was also taking antibiotics at the time and they did something to counteract the hormones.
I was on the pill for only a short while, I never liked how it made me feel -- it was very a very strange, unnatural time. Thankfully, my body bounced back quickly--because I've heard horror stories of women who NEVER get back to normal. We'll be trying (possibly, still haven't decided) on baby number two next year. If we get pregnant, great, if not--there's always adoption.
I pray God will bless you with another child, in the way He sees fit.
My college roommate started crying while reading the list of side effects of the pill before she started it, to treat her ovarian cysts. Three women died during the first test run of the pill, all they did was alter the dosage.