Here it goes again

tenille
Last time I was pregnant (lost at 5 weeks) I didn't test positive until 3 days past my missed period. 
​I'm due today, not showing any bold double lines. Tested on frer
​I don't have my swollen period boobs, they usually instantly swell up a size! It's a sure sign that af is on her way, and I get matching tummy bloat. 
​Anyway, the point of this is to ask if not showing a positive now (if I was pregnant) like I didn't show one last cycle, could that mean I am only going to be pregnant for a few weeks? 
​Is it normal not to test positive early? Did I miss the signs of a chemical or miscarry last time? Am I headed for that again? 
​Any help would be fantastic. My daughter is now carrying around my pregnancy test testing all her toys temperature haha.