Injectables

Hello All! This is my first month doing HMG injections. I started Dec 14 and ended Dec 22 and triggered on the 23rd. I did take some prego tests to test out my trigger shot. They were all positive until yesterday (cd22) it was negative. It is possible that yesterday was implantation day but I didn't see any spotting. I am on progesterone suppositories. Anybody see where I am about to pull my hair out???! I have been ttc for 4 years now