Yes, and to be honest ours got worse before it got better.
When Imogen hit 5 months she decided that she would wake up every time the dummy would fall out. Some nights she was waking every 20 to 40 minutes. But we came close to taking dummy away altogether and she turned a corner. She learnt to put it in by herself!!
So now at 7 months she sleeps most of night without it. Wakes up once for a feed which I have nearly got rid of!! Am I secretly hoping once feed goes I may get a full nights sleep.
I think the decision is ride it out or take dummy away!