Do you use the 3 for 2 offers? I'm on proceive conception at the moment, I tried cheaper brands but this one seems to be helping my cycle regulate better and I don't feel ill on them like I did with pregnacare. They always seem to be on 3 for 2 offer which is how I bought them originally but now I'm running out and not sure what to do. Do you take advantage of 3 for 2 offers or do you just buy one pack at a time in case you do actually conceive?