4mo sleep regression?

My babe is 4.5 months. She’s always been a pretty good night sleeper (2mo waking up once at night, 3 mo sleeping through night most of the time). Her day naps are pretty rough - 20ish mins long but we’re working on that.

But in the past week-ish, she was started getting up multiple times throughout the night, or would just wake up in the middle of the night wide awake babbling. She has also been waking up like 20-30 mins after she goes to bed for the night and needs to be settled down all over again to get back to sleep. And the past three nights she’s been waking up, ready to get up for the day, at 4:45- 5am, still while waking up multiple times throughout the night. I find that if I put her in my bed with me she will fall back asleep for hours though?!

I have been wonderful if she’s teething, so could this sleep craziness be from that, or is this madness what they call the 4 mo sleep regression?? And if so, what can this momma do to get more sleep? 😆