Thanks mattysmrs! I've actually limited myself on the drinks since TTC. And for me the best part of a Dr Pepper is the very first drink.

Then after that I can take it or leave it. And with my other two pregnancies (many moons ago) I didn't drink any caffeine. I was mainly wondering about the Pepsi for my husband...Pepsi is his coffee-substitute. Anyway, it was just a silly "hmmm...maybe somebody on here knows a little about this"-type question.

I have another question, though. I just realized that I am scheduled for my scan on CD 12 and because I have shorter cycles (24-26 days) and ovulate around CD 12, should I be concerned the endo won't be right for a transfer a week later? Or does taking the BC make my cycle longer and therefore that would make the timing right or better for a transfer a week later? I've also got an email into the clinic asking the same thing...just curious if any of you very knowledgeable ladies might know the answer.