I think my dental crown is loose, what should I do?

Q. I had a crown on implant placed approx 2 weeks ago on my front tooth next to post crown on the other front tooth. Although I am unable to move the tooth when i try to with my fingers etc, touching the back top of the tooth with my tongue it feels spongy and like it is loose. I am reluctant to re-visit the dentist as im not sure the crown is loose, but it is bothering me daily. Im wondering if because I have had a temporary bridge in for so long (around 8 month) and this came loose twice, whether i am getting some false sensation, and just imagining it, is this possible? many thanks for any advice.,