Tww / dpo - Help!

Kayla

Hi! I have a question which may be an odd one. I'm wondering when you start counting dpo/tww? I'm amenorrheic so I couldn't tell you when my last period was or is suppose to be. I took clomid 9/16-9/20. I have had 13 days of 'high' ovulation, including today, with no peak. Does that mean I did not ovulate and shouldn't even count dpo?