What Causes Abdominal Pain, Urinary Frequency And Pain, Fever After Taking I-pill?

Dear product complaint center

I and my wife had a unprotected sex on 3-april-2010 and she had the I Pill on 4-april-2010 and there were no side effects. Then again on 10-april-2010 we had a unprotected sex, she took again i pill on 12-april2010 but this time there are some serious side effects

1. Pain in lower abdominal.
2. Urine in every half hour.
3. Pain during urine passing. Color of urine is yellow
4. Fever of 99.8 deg. F.

I have consulted a doctor he has prescribed medicines

1. TAB NORFLOX X 5 BD
2. TAB URISPAS X 3 BD
3. SYR REMALKA X 1 SPOON
4. URIN TEST

Please tell why are we facing such problem and suggest what could we do in order to keep her out of it.