4 Days Late/Negative HPT

April • I`m 29 years old (30 in March), my husband is 38, and we have been actively trying to conceive since September 2012.
I've been on Clomid for 5 months and this is our second <a href="https://glowing.com/glow-fertility-program">IUI</a>. Here's what's going on. 
​•I'm 4 (almost 5) days late, 
​•I haven't been late since I started Clomid. 
​•I've been having mild cramps for 6 days now but nothing like my normal cramps which are way worse.
​•My boobs aren't sore at all, normally they get sore a week before AF arrives. 
​• I've been testing every morning since Monday with the internet cheapy tests and all have come back negative. 
​My question is: Have any of you out there gotten mutliple negative tests when you actually were pregnant? And if so, when did you finally get a positive result?
​Thank you so much ladies! Any help is appreciated! I so hope this is our month!