inpatient (anyone else)

I was supposed to get my AF on May 20th it is now May 23rd and still no signs of my AF or symptoms or feeling like its ever going to come. 2 months ago I was 4 days late I didn't take a test because I was waiting for a week to pass before I took the test and on the 5th my AF decided to come now this month I am 3 days late and I am so anxious I have horrible heartburn I've been sleeping for hours most the time all day long for the past 4 days I took a test on the 20th in the morning but got a BFN I am waiting till Saturday morning to take another test to see what happens I really hope my AF stays away but if it's just another mind game I can't stand it, its so frustrating I've been trying to conceive for 8 months now my first child was on the first try literally our first time doing it I got pregnant but this time is taking longer I don't know if it's because I had the copper IUD on for 3 years and took it out 8 months ago but it's so frustrating I want to have another baby already