Hi Sharon, don't panic yourself yet xx

Remember all different makes of OPK test at a different level of HCG, and you can always get a false +ve but I don't think there is such a thing as a false -ve (I am sure I have been told that!!)

Also, remember that if your urine is quite diluted when you test it may not show up this time (didya wee in the night/early morning??) , also I would think a faint second line immediately is a good sign even if it did vanish afterwards.

If it helps (I know it doesn't!!), there are shed loads of us that would have (and do) test as early as you did, I know I would have done (ask my DH, we had several tubes of 50 LH & OPKs sat around at any one time )

I once tested 5 times a day for a whole week when we were camping in France because I was paranoid only me could see the very faint line (and yes, I was pregnant!!) - I have also used my OPK sticks at the 'wrong' times because I have convinced myself I am Oing!!! I am expensive when TTC!!

Sending you , remember others have said they saw the line too!!!

Keep us posted, crossing everything for you
Love Alex xxxxx