Preseed?

Shonda • TTC BBY #2 Second Cycle Trying! Trusting God along the way!
Anyone used/tried it? We used it 4 times during my fertile window... Im in my 2WW. Not expecting AF until Sept.1. so Im going to test with FR six day sooner August 31st. Anyone else similar? Or experiencing their 2WW that used preseed? I start cramping on CD 16,17 & 18. Im excited, nervous and anxious all at the same time!