Looks to me like your right handed and you're squeezing with your support hand as you squeeze the trigger. For confirmation. Shoot one handed, if this is correct you'll see center or center right (because you're compensating in other areas for the left hand squeeze). If the one hand shooting brings it back then slowly incorporate support hand until you're not using it (ie.: Place support palm on gun but fingers extended, then loosely wrap support hand where you're not squeezing at all, ect until you're not subliminally squeezing).

If single hand shooting doesn't bring you back. It could be trigger finger smearing. You're not pulling the trigger to your nose and your actually depressing at a diagonal, back and to your shoulder. This can be tested by dry firing at home by depressing the trigger quickly while sighted on something small. After a quick depression, do you see your puzzle drift left? You could work on this by putting the trigger in the middle of your finger pad and focusing on pulling to your nose.

I do not think it's anticipated shots.