Late....and nervous!

Rachel
So I'm now 4 days late and on day 32 of my cycle. 
We have been trying for a while and I have been recording my cycle for a year and a half it varies between 27 and 30 day cycle...normal is 28. 
I'm very nervous about doing a test as I don't want to burst my hope bubble! 
I'm only optimistic as in 18months my cycle hasn't ever gone over 30 days! 
Anyone else in the same bot?