So tried and zero energy!

Terra • My husband and I are expecting our first child September 5th!
I'm ttc and its 8dpo...I have NO energy and can lay on the couch all day. My breasts have been sore for 3-4 days now and I've been tired for the same amount of days. I took a test yesterday and it was a BFN...anyone else experience this? My AF is due Aug 6.