Ovulation Question

Sharon • 42 & TTC #3 #1 for my gorgeous SO hoping for a girl as have 2 boys 14 & 18
I have a question & I'm hoping someone can answer it for me ?
This morning i did a Clearblue ovulation test with my fmu the result being a lovely smiling face (high fertility) on getting home from work this afternoon I tested again using a cheap test & the result was just the test line no 2nd line visible, does this mean that I've ovulated between the 2 tests???
Many Thanks in advance xxx