have you ever been on the pill before? some womens cycles don't go back to normal right away and some start ovulating like normal right away.
depending on when you actually want to start ttc it is august and if it were me i wouldn't start on them. of course it is completely up to you though!
but, temping does work and it is an awesome way to see exactly when you ovulate to help things along faster! do a search for bbt charting, it is real easy to do. i printed out a chart to use or you can go to fertilityfriend.com and use the free chart there.