Sorry this is so long but looking for some insite from anyone! I have been battling chronic yeast infections for about the last 6 months. For this last month I have been taking RePHresh (a probiotic) to see if that helps...I feel like maybe it has but this week I had one so I took the yeast infection pill dyfican. I am 8 days late and I have taken 3 test this weekend and all bfn so my qestion is does anyone have any idea if taking these pills can cause a change in your cycle or alter a pregnancy test reading?