Pregnancy After Switching to Trinessa: Experiences and Insights

Question
I AM MARRIED, 31 YRS OLD AND HAVE 2 KIDS.  THE FIRST DAY OF MY LAST PERIOD IS IRRELEVANT AT THIS TIME.  I AM PREGNANT.  IN MARCH OR APRIL OF THIS YEAR I SWITCHED BC PILLS FROM ORTHO TRICYCLEN TO TRINESSA WHICH IS THE GENERIC BRAND AND CHEAPER BRAND.  I AM NOW 21 WEEKS PREGNANT AND SO FAR DURING THIS 21 WEEKS I HAVE LEARNED OF 4 OTHER WOMEN WHO GOT PREGNANT ON THIS PILL.  I KNOW FOR SURE 4 OF US WERE NOT ON ANY ANTIBIOTICS (WHICH COULD LESSEN THE EFFECT OF THE PILL WORKING).  4 OF US WERE ALSO DONE HAVING CHILDREN AND WERE FAITHFUL TO TAKING THE PILL EVERYDAY AT THE SAME TIME-NONE BEING SKIPPED.  MY QUESTION IS, HAS ANYONE ELSE EXPERIENCED GETTING PREGNANT ON THIS PILL?  I LIVE IN A CITY OF 50,000 PEOPLE AND THIS IS 5 WOMEN IN A 20 MILE RADIUS.  ANYONE ELSE HAVE THIS HAPPEN ON THIS PILL?

Answer
I am unfamiliar with a pill called "Trinessa". You always have to be careful when using generic medication. Your best bet is to write to the manufacturer and see if there are any reports of failure rates with that medication. If you get no satisfaction from the manufacturer, I would write to the FDA and lodge a formal complaint.