Question!

So my bf and I had sex on Thursday of last week. I’m on the ring and took that out on Wednesday morning. While having sex, the condom came off inside of me. I was supposed to start my period Sunday or Monday and still have not. I don’t think I’m pregnant, but I don’t know. Do you think the ring is causing me to miss my period or do you think that I might be pregnant? Is it too early to take a test even though I’ve missed my period?