Anyone have baby crawl early?

My baby is pushing 4 months and I almost think she is going to start at least, belly crawling, very soon. She wiggles a lot and never stays in the same spot she can wiggle all the way around 360*. She can wiggle several feet from where we put her down.

If we put a toy in front of her you can see she is very determined to get to it and will kick her back legs into the floor trying to move forward. Like you can tell she really wants to crawl. Is 4months too early or am I being crazy 😜?