Negative OPK's during fertile week πŸ˜“

Kelly πŸ‘§πŸΌπŸ‘ΌπŸΌπŸ‘ΆπŸΌπŸ‘ΆπŸΌ β€’ Married πŸ‘°πŸ» (2008), 1 DD πŸ‘§πŸΌπŸ’–(2012), 1 DS πŸ‘ΌπŸΌπŸ’™(became an angel 2/26/16), spontaneous B/G twins πŸ‘ΆπŸΌπŸ’™πŸ‘ΆπŸΌ πŸ’–(2017)
First cycle after chemical pregnancy. I typically get a positive on CD 14. Today is CD 13 and the lines aren't getting darker, seem to be getting lighter even. Anybody else in the same boat? I keep BD'ing with my husband just in case!