Hi very new to this,
I am 23 day cycle with my period, and this month was due to have it 20th May 2013 it hasn't showed up, but have sore boobs and bloated stomach, I have done 3 home tests and all showed negative, we have booked into doctor on 27th May next week and fingers cross it comes back positive. Im 43 years old. Has anyone else and something like this happened to them?

It's too soon to test.
Your symptoms and 3 days late are extremely common, and they don't indicate anything yet - can be a late period or pregnant. You could be late because of anxiety or anything.
Good luck!