Am I over thinking this?

I am a few days past ovulation per glow app. My breasts are very sore and have been since before I ovulated. Last time I was pregnant my breasts were sore and I was tired all the time. I do feel exhausted but im not to sure if it's because I've been sick with a cough for 3 weeks and just don't have the time to take off to feel better. I really want a baby and have been trying for 8 months now. Am I possibly overthinking this and have imaginary symptoms or could I possibly be pregnant?