18 days past trigger still no period

I'm 18 days past orvidrel 250 trigger shot, I had super faint positives up until 16 day after, now negative. But my period was due Thursday, it's now Monday and it still hasn't started. Beta was 1 so I know I'm not pregnant 😞 When did your period start after trigger?

I also had clomid 3-7. And estrogen pill vaginally. 1st time on medicated cycle.