Decided to buy Presseed.! Advice?!

This is month 8 of TTC and second cycle using medroxyprogesterone (irregular cycles) First time using mexdroxyorogesterone two months ago I did get a faint positive which ended up being a chemical pregnancy . This time around I decided to buy pressed and use it for the first time (as well as continuing using OPK)  . Any advice on using it . Is it better to use a diva/soft cup with it as well or is just the pressed alone good .? And when should I start as soon as AF is over up until my positive OPK .? Or only just my positive OPK .? How long did it take for you to conceive using pressed with or without the soft cup . Sorry for all the questions just want to make sure I'm doing all I can .!