Confused

I was prescribed clomid and I took a trigger shot On January 23. I did test to see if the trigger was in my system which it was because I got faint lines up until seven days past the trigger. The last few days I have had negative pregnancy test and I’m just so worried that I will not be getting a big fat positive the cycle. I was also put on progesterone pills which I’m taking twice a day and it’s such a mind game because I heard they delay your period. My question is when should I test next and is it possible to get a BFP still?!?