I can relate to your question.

I did a little research into the difference between the two, as I had been taking the B/M TTC tablets that come in a monthy pack for about $40, and after TTC for a few years, it became a little pricey.

So I have now swiched to the Blackmore's Preg & Bfeeding tablets, as you get a BIG Tub that lasts 3 months for $40.00

It's the folate that is the differnce in the two, so I suppliment the folate, with 5mg of Folate from Priceline $8.95, so I am getting adequate Folate intake. I also take royal jelly, CQ10, B6and Fish Oil

I checked with the pharmicist and my fertilty specialist and they were both happy .. HTH