"I'm a bride... A BRIDE.... well, almost! ;) To be asked to shoot the cover of @cosmobride was such an amazing honour," she wrote alongside the snap.
Heinrich also admitted this was the first time she'd tried on a dress in preparation for her big day!
"I'd never tried on a wedding dress before, so this was such a special moment for me."
Too cute, no matter which style she goes for – we're certain Anna will make a gorgeous bride!