No period - BFN??

Amanda • Proud Mother and Wife to my little family
Hi ladies,
Hubby and I have been TTC for two years now. I never ovulated until we tried our first <a href="https://glowing.com/glow-fertility-program">IUI</a> in October. It didn't work, but since then I've gotten my period regularly always on schedule (maybe a day early or late)
Now I'm 9 days late! 
Started getting mild cramps a week before my period which is what I attributed them to... Felt really bloated (which has never happened before), then missed my period by a few days. 
More slight cramping, add on some back ache and very vivid dreams... Took a test two days ago but got a BFN :(
Still no period, no spotting or anything...has any one had success even in a situation like this?
Retesting in a few days if still no period... My boobs feel fine but I've heard not every woman gets that. 
I want to be hopeful...but not get my hopes up you know? 
Infertility sucks!