Wild orchid ID required

Hundreds of these grow all around where I grow my veg:





My first thoughts were that it's an early purple orchid. There's quite a variation in colour, these flowers above are amongst the the lightest ones (or there may be more than one species).

 

Another plant today (although going back through pics from last year they appear to be 2 weeks earlier - along with just about everything else round here!).

 

I am going to hazard a guess at either Early Marsh Orchid ( Dactylorhiza incarnata ) or Fragrant Orchid (Gymnadenia conopsea ).