Yeast infections before and after period

hi,
I have been having the hardest time understanding what is going on with me. Here is some friendly history, for the past few 9years I have been off and on birth control, in 2007 i had my daughter and it was also the first time i had ever had a yeast infection. recently i had changed my birth control and was last using ortho tricylcline , which i have not been taking recently. It seems for the past year and more recent now, i have been having multiple yeast infections. It seems like a patteren, i will get one before my period then my period will come and then again a yeast infection. I looked up info as to what could be the cause and now im deathly afraid since HIV was brought up in many of my researching. I also saw things like using certain body washes or scented tampons, i have made some changes with those and hope for the best but i currently just ended my period and cured the yeast infection. So im hoping those changes might have helped.There has also been times when my fiance and i have having sex but then i become dry and he will use his spit and or KY(but not all the time), while researching i saw something about using spit was not good and so again im not sure.
Another problem that i am having is it seems during sex i do not get wet as i would before then cause since during sex or just not having sex to avoid the discomfort and possible yeast infection and or cuts. i know this seems like a lot and believe me there seems to be soooo many more questions, but if you have any answer or suggestions for me i will be more than pleased. thank you for taking the time to read this