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MeatandBandP said: If you are due Sept 10 you are much further along than 3 1/2 weeks. But yes on all of my pregnancies I have gotten positives at that point.
Re: Strong BFP at 3 1/2 weeks??
Using FRER I've seen clear though not dark lines at 13 DPO (#1), 11 DPO (#2) & 10 DPO (#3) and the second two weren't even FMU.
I had an immediate, as dark as the control, line on an FRER at 14dpo. At 5w I'd think that most people would see immediate dark lines.