Please help im losing my last ounce of hope

Courtney
Im onDay 12 post <a href="https://glowing.com/glow-fertility-program">iui</a>! I felt a pain similar to implantation but no bleeding on day 9 .ive been having mild cramps, (idk if its af because mine usually start the day before she comes)back aches, hot flashes and leg aches since then . But now all of that seems to go away and I took a pregnancy test this morning when I peed on it , it look like it was gonna be a positive but when it got to the control line it disappeared . I am slowly becoming less hopeful and I cried for a good bit praying to God something good will come . I need a bit of advice so that what little hope I have left doesn't just go poof. Should I just wait till this Friday at day 14 when I go for my blood test? Any little bit of advice or experiences would help