Ladies your experience using advanced digital cb opk please :-)

Mel

Hi ladies ,

Had a mmc @ 9 wk and erpc on 19th November. Finally got bfn @ 5wk decided to start using opk a few days after this got a negative opk , waited 3 more days got a flashy smiley face opk , for 3 days in a row. This morn opk was negative. Ladies your experience with this would be greatly appreciated, I realise my cycles will be out of wack.