Have I already ovulated?

G

So confused by my bbt chart this cycle. I have had no positive ovulation tests.. They have all been very faint 2nd lines. But it looks like I could have ovulated super early from my bbt. Also had spotting today and I never get mid cycle spotting. I am on my 2nd round of 100mg clomid. Last cycle I ovulated on day 12. Any thoughts?