Frustrated!!

​convinced I was pregnant when A/F was two days late with tons of symptoms. I took a test this morning & it was negative :( I totally dismissed it. 

​convinced that maybe it was too soon to test. Then tonight after supper A/F decided to make her appearance. Damn you! Here's where I'm totally confused; wouldn't I be more fertile since I've already had a baby (14 mths ago)?? Annnnd, why did my period come two days later? Is it because it almost caught but didn't quite make it? Aargh....so so frustrating!