When should I test?

Hello! I can't remember exact dates, but my bf and I had sex when I was ovulating without protection. I think about 5 days later I experienced some light spotting for a day. It was light pink. The past 4 days or so I've been peeing like you wouldn't believe. I was supposed to get my period today and it hasn't come. The only times I've ever missed a period or had it come late was when I was on birth control. I haven't been on birth control for almost a year. We are worried I may be pregnant. When should I take a test?