Having trouble understanding when I ovulated

I can’t figure out when I ovulated. I had positives for 3 days in a row. If you count from the last day, I’m now 5 dpo. But I’m wondering if I’m actually 6/7 dpo because I had light spotting, mild cramps, and nausea yesterday, follow by nausea and itchy/sore nipples today.

Any insight?