I recently had used Nuva ring but after the last time I decided I no longer wanted to continue it. I took my Nuva ring out around July 19th and started my period shortly after. My period ended on July 25th. I did not put another Nuva ring in. Also on July 25th I had unprotected sex with my boyfriend in which he finished.  inside. I did not use plan b and have not taken a pregnancy test yet. I am supposed to get my period in 8 days but my cycles have always been very irregular. How high are my risks? Do you think I could be pregnant? When should I take a test?