Confusion over testing, help please xx

[Sparrowmummy]

Feeling really frustrated and strange I am today on CD 30 of an average 28 day cycle.
When my period didn't arrive on Saturday I tested yesterday lunch with a Superdrug digi wondfo. (says on packet cannot be used to be tested early only on AF due date so does not have a very low sensitivity) Got a BFP back in a couple BFP back in a couple of minutes. Wahoo!!

Last night I thought I should prob check and do another. I did a CB digi and it came back negative, I then did a CB blue dye and I'm sure I can see a line?

Did another digi this morning and again another BFN. I am so confused. Why am I getting negative off higher sensitivity tests but I got a pos of a low sensitivity!?

I am also feeling crampy which isn't helping my nerves. What do you think ladies? Could it have been a false positive?

 

[Wishx]

I can see a line! maybe try a Frer? I know the digi often doesnt tell you until later than the FR or CB.
I hope it gets darker xxx

 

[Bevziibubble]

I see a line! Good luck

 

[Kelskiii]

I see a line! goodluck x

 

[Cppeace]

Yep I see lines. I second a fr. Dig is almost always several days later on getting a positive.. keep us updated if you can . Fx