These darn ovulation tests!!!!

I am so confused! I have been using 2 different ovulation tests at the same time to compare results. On the Clearblue digital I got my solid non blinking smiley face last Thursday. The drug store brand with the lines was negative, like barely even a test line visible. So today for the heck if it I took another drug store line test and it is positive! Very dark test line! So did I ovulate last week or am I about to ovulate soon? I am thinking we should BD tonight just in case. Let me know if this has happened to anyone. Thanks for reading.