Just an update for you guys --
I did another cheapie pregnancy test and it was stark white negative, so that must have been a freak false positive. How bizarre.
I did another OPK as well this evening and again the line was darker than the control line so I'm taking that to mean I am ovulating now, later than I expected this cycle. I'll do another tomorrow to see, and if I haven't caught this month then I'll probably keep using them to monitor what my cycle does!
It's amazing how much you learn about your body as you TTC/get pregnant!
Thanks for the replies to my posts guys!
Congrats Zara on your BFP! That's an amazingly bold line.