It will unravel at first but eventually, depending on how kinky your hair is, it will start to take shape after 3-4months. Softer textures tend to take longer to loc up.
One thing I recommend is to spend about 10-15min every few days to check dreads that are unraveling and just give them a quick palm roll.
Here are the locs that I did
Mines are the first ones, I started those in August with the help of my mom.
The other 2 are my daughters and I started those in April of last year. My first time starting any dreads and only information I had was some youtube vids. Information on how to start and maintain locs for US is few and far on the internet because of white people.