Nuvaring No Period

Desirae
So here's the deal. I switched from the pill to Nuvaring roughly a month ago. I didn't take a pill the day I put my first one in, and I just took it out last week. I've been waiting for my period since then. I had some spotting on Saturday but nothing since that.    We did have sex four days after the ring was put in and he came in me. I know that's stupid so please don't say anything. Anyways is it normal to not have your period after this hormone shift? Because my Nuva cycle is dif than my pill cycle. Should I take a pregnancy test?