New PB before breakfast

I have just been out for a run before work and before breakfast around the Uni campus near my home.  The route is 5.48 km and I got round in 25:41, which is the quickest I have ever done it.  I am pretty pleased with myself, not least because I got up early and went out on an empty stomach.  Apparently, running on an empty stomach burns fat, which is good, as I have some to burn.  I did have a cup of tea before I went (my wife is amazing), does that count as an empty stomach I wonder?  It meant I could get out of bed; were it not for the tea I'd still be there!