I have a question about ovulation.?

After my period, I was completely dry for almost the week before the 28 days was up. I'm only a day late, but I'm curious, what is up with this? It doesn't seem like a pregnancy symptom. I thought increased discharge would be a symptom of pregnancy. I've always practiced safe sex, but I'm also only 20 I guess I could still be going through hormonal changes. Did I just not ovulate? I'm kind of confused.