Confused..

glow app says I'm supposed to be fertile right now but when I checked my cervix I'm really tight and don't feel any mucus. My husband and I have been trying the past few days straight thinking I was fertile. The app says today is the highest chance of getting pregnant and I'm literally in pain now from trying, can't imagine having sex again tonight. I don't think I'm close to ovulating am I? I'm so frustrated, any ladies can help me out on how to know I'm close to ovulating without taking a ovulation test?