Hi Patricia,
It's Tricia! (Nope, mine's not short for Patricia, but I get that alot!)
Sorry, I digress...I wasn't on Supplements when I got pregnant, but I was doing Meal Replacements as part of the Body For Life program when I found out in January '02 that I was pregnant. And as far as having problems, I didn't have any. We started trying for a baby in November '01 and by the end of January I was pregnant. (To be honest, I was sure at first that I was dying from the Flu since the doctor told me it would very possibly be 6 months to a year before I could conceive. I was coming off the pill and so I never expected to get pregnant that quickly!)
I don't know how similar the meal replacements are to Supplemental pills, but I hope this helps and gives you encouragement. Do you think there are other factors (such as a prolonged use of the Pill) that could be causing a delay?
Don't give up hope!!
Tricia