I use MB opk's and temping all together. Personally the MB is probably a waste of money as it doesnt work for everyone. I find a thick layer of saliva is needed and about 20-30min drying time - which is not how they say to use it. When i start to get partial ferning i do opk's (lullaby Conceptions are great and cheap) and monitor my chart. Start by buying a digital basal thermometer and join fertility friend.
Good luck