Not feeling the greatest 😔

So I have PCOS and been taking inositol and a female balance supplement to help regulate me. I had my first period in 2 months but it was from the 18th-28th. I didnt take any ovulation test but app says I should have ovulated the 2nd. Well now for past 3 days I have had heavy CM mucus my lower back is killing me I’m so tired crampy and my breast hurt so but but the left one is worse. Could I be pregnant? If so when can I test? I don’t want to get my hopes up 😭