How to differentiate between ovulation pain and pregnancy pain

Subhashini
Hi everyone I have sore breasts every month during ovulation. I heard we will have sore breast as early signs for pregnancy , is there a way we can differentiate both. I am due with my periods on 12 Nov. I did my pregnancy test today and it came negative. I have symptoms like sore breasts, morning sickness.
Should I wait to retest. I am very upset.