Ttc without clomid

Ni

Took Clomid last month along with provera..This month AF came without provera and I didn't take my Clomid.. Is it possible I ovulated on my own and can possible get a bfp today is my ovulation day and I have been having sex has anyone gone thru this or so I need the clomid in my system awhile before I start ovulating on my own...I'm so confused...