Is this normal?

Victoria • TTC#1 RAINBOW BABY=) miscarriage around 6weeks June 2015. Struggled with ovarian cancer at age 17 only have one full left ovary and a small portion of my right ovary.
It is normal to get positive opk tests more then one day in a row and how many days after the positive opk do I even ovulate? I had intercourse last night and the night before, I told my SO we should tonight and tomorrow night just to be sure, does that sound about right?