How far along am I?

Ashley • Married. Mom of 2. 💙💜 Baby Layla is in heaven👼🏻🎀

I tracked my BBT and I usually always ovulate on CD 13. If I go by that date, I’ll be 4 weeks pregnant. If I go by LMP, I am 3 weeks 4 days pregnant. Period is not due until tomorrow. So which one is it for now?