Testing out trigger ?? Confused

Okay, I am really confused. I know everyone is different so that’s what I’m using as the excuse. But I thought I’d get your ladies input as well. I got the trigger shot Sunday 10/8, ovidrel 250. I proceeded to test it out only to find it completely out of my system by 4dpt. I’ve always heard that it can be anywhere from like 6-12 days and was wondering if it is okay or normal for it to be gone that early? I got an ultrasound Thursday 10/12 and the nurse informed me that both follicles I had released an egg so that was good news. Anyone’s input or opinion is greatly appreciated. I’m just worrying