Ok Guys, So some days ago wordpress released an update (Since it had some security issue addressing it installed automatically). I was checking some of my sites and i noticed that for some reason the images were not loading. I checked the source and the links were converted to https://... I disabled all the plugins and started enabling them one by one and i found out that woocommerce was the culprit. It also had an update pending. After woocommerce was updated everything went back to normal. I thought i would share this here because maybe someone else is facing the same problem.