I should know better by now. TTC for 3 years, 4 mcs and numerous odd cycles.
Yesterday my DH and I worked out my AF has been MIA for a while now (I've given up actively TTC and have wilfully not written down the start or finish dates of AF for ages) so this morning I POAS.
I used an internet cheapie and there's a strong pink control line, and another strong pink line, which appeared within the time limit but isn't quite as neat as the control line, but it's in a weird place. It's sort of just under the strip which marks how deep you should dip it to.
Does the place you get a BFP move about a bit on the cheapie sticks? I've got an old peed on stick from the same batch which I've compared it to and it is a slightly different size and the control line is in a slightly different place. This second line is the strongest 'BFP' line I've ever had.