is it still my trigger shot?

Anna • http://www.plexusslim.com/plexuswithAnna Annamclamb2013@gmail.com. 5702347830
I had what I thought was a very light spot of blood on toilet paper 6 dpo (2 days ago) I had my trigger shot 9 days ago with my <a href="https://glowing.com/glow-fertility-program">IUI</a> (intrauterine insemination) I had tons of crampy and sore nipples today do you think it's just the trigger shot or am I getting a positive due to a baby in there?! 

NOTE: tests are too to bottom from 1 day past trigger to this morning, the very last test is the one in question I took it this evening