What is going on? 23 dpo?

Hello, currently nine days late for my period and 23 dpo. I’ve been testing since 13 dpo and have had all negatives. I used a digital at 19 dpo and said not pregnant. Today, I went and bought another batch of first response and got negative there was maybe a line but it was too faint to make it justifiable. Soo I’ve been told maybe I ovulated later than usual? I have regular cycles... I’ve never experienced this late of a period before without having a positive pregnancy test. I don’t know what’s going on honestly,. This is really strange. I don’t know why my period isn’t showing up. Some say they didn’t get a poSitive until 2 weeks after ? I’m already at day 9, I guess I’ll keep waiting.. but any input or thoughts would be appreciated thank you