Confusion... Help please!

So here's the deal... Came off BC @ Easter... First month, normal 28 days.. First cycle started 4/6, lasted 5 days.. Second started 5/3 lasted 4 days... TTC with opk.. Then AF shows up on 5/20.. Very heavy! So heavy I went to the dr.. Said it may have been a chemical pregnancy.. Bleeding lasted 7 days! Started opk again.. Big flashy smiley on 5/27, 5/28, 5/29 BD.. Glow says AF was due this past Tuesday 6/9.. And nothing... No AF, Neg on hpt... What in the world! Any input??