Adjusting Bedtime for 17 month old?

FTM here and I’m not quite sure what to do. So my 17 month old has been sleeping through the night since 2 months old. Goes to bed at 7:30/7:45 and sleeps until 7:30/8:00. This past weekend she has started waking up at 4:30/5:00 and is wide awake. We did get rid of the pacifier this weekend so I’m sure that has something to do with it as this started when we took it away. However, now I’m wondering if I should be adjusting her bedtime. We’re just looking to get her back to the 7:30 wake up time if possible. Any ideas on why she’s waking earlier and if there’s anything we could do to help?