I would normally drink one to two 2 liters of coke a day. That was my addiction. I don't smoke. Rarely drink. I'm hoping the fact that I've switched to 7 up will increase my chances of a BFP this month. Af started because my doctor gave me a Progesterone pill because I didn't have AF last month or month before. Pretty sure it was stress. Also been taking my pre natals every day along with 1000 vitamin B  and vitamin d, and liquid Geritol and Preceed. I'm 243 and I'm hoping these changes will help my body. Also started a new job in a factory so I'm constantly walking so hoping that little added exercise helps. Any heavier women had any luck with similar situations.. Where you finally were able to get your BFP.