ovulated twice. two positive test within a week.. confuse!!

Yesenia
Hi there!! 
I'm new to this, I've been trying ttc for a year now.. been taking ovulation test and had a positive one on Friday the 4th then I took another one on the 6th had the happy face. Then Monday I took another one and nothing!! Yesterday I was kind of curious so I took another test and it had the fashing happy face, today I took another test and same!! What does this mean?? Iam i ovulating twice this cycle?? Someone help!!