Second time lucky?

Ok, T and I have talked about it.
There is a second pregnancy test sitting there idle in the pack. Right there in the bathroom cupboard. So, why not?
The thing is, I am more than a week (I think) late for my period...there has been no sign of it.
Although, you do wonder what impact all those crazy hormones artificially introduced to my body over the past six weeks have had. Of course they would probably screw with my other due date. Would they?
T is also saying I should get a blood test tomorrow regardless. I really don't know.
Maybe we should give it a bit longer...next Friday?