Steering wheel on highway lean wrong- normal ?

Hello dear forum community First again a happy new year (unfortunately a little late) I drove a longer piece of highway yesterday and I noticed that I had to steer slightly to the left in order to go straight ahead. When I was back in the city, the steering wheel was standing straight. Sometimes you even had to steer slightly to the right… Sounds now perhaps a bit strange, but can something like that because of the road conditions (off to the roadside, so that rain The steering wheel was really only minimal, but looked rather strange. Last axle measurement was made over a year ago and kerbstone remplers are not known to me… Thank you for your answers, maybe someone has some idea of it Many greetings André (vehicle: Megané II CC 2.0 16v Turbo, EZ. 12/05, approx. 68,000 km)