Baby kicking low affects cervix?

C.

I'm 35+6 now, unfortunately baby is breech and kicking reaaaally low, some movements being really painful. What worry me are the kicks that "shake" my cervix... Are these dangerous? Could they actually shorten the cervix? Could I go into preterm labor just because of baby kicks? I can't flip the baby on my own and my doctor won't help me for that... But is there something I can do to make her kick a bit higher?