USB connector feels loose

[Tonfun]

I've used two different usb cables on my 630 and 1320 (my primary phone) and both can be wiggled at the connector once its fully pushed into the port. The wiggle effect is greater with the 1320. This makes me feel like the connector could pop out eventually. With my s3 I never noticed the cable being able to move back and forth at the connector. Wiggling the cable does not affect the phone. Is this common with lumia phones? Should I be worried?