Positive pregnancy test but confused.

Kim
I am 32 and my hubby is 39 and we have been TTC for 2 years with literally no success. 
My period isn't even due for another 2 days but I Tested randomly this morning and got a very faint line on one of the Internet tests strips.  I was like whoa !
Tested again about an hour later and got a darker line. Not super dark but darker than the first one.  I tested one more time a few hours later and the line was the same. 
So..... My Husband wanted to use one of the digital ones that say pregnant or not pregnant and we did and a big fat "NOT PREGNANT" popped up.  We were confused so Took on more of my test strips and there was still a faint line. 
So now I'm just confused because I have 4 other tests that say yes.   I want to be excited but don't really know how to do that after TTC for so long and getting no all the time. What's up with the digital one ? Ughhhh. 
Thoughts anyone ?