Hey, my luteal phase is always 12days, I have a 24-27 day cycle, and I'm just wondering how the FRER tests work when they say they work 5 day's before your missed period, does that mean I should be able to get a line by 7dpo as I've read most people implant at 9DPO... a line at 7DPO would mean implant 5/6DPO as the hcg would need 24 hours or so to release after implantation... just a query I hope someone can help with :) x