I was on tricyclen for a few months and switched to Nuvaring. I started the nuvaring exactly 8 days after my period started (8 days after I stopped taking Ticyclen). My boyfriend and I had unprotected sex 3 days after starting the nuvaring, I am now on my period but it is so much lighter than before. Could I be pregnant?

I have no cramps, or breast tenderness either?