Notice the blood on that first egg. It was certainly not easy for that pullet to lay her first egg. Hope she waits a bit for her next eggs--may be soon, or a week or 2. Fertile or not (but it likely is, as you have rooster), she will not become broody until she has laid a"clutch"--which for a first clutch, may be as many as 20 or more eggs! The dear little hens do not look like Silkie crosses, but may have Silkie characteristics! So DO NOT LEAVE her eggs in the nest, but collect and mark the date on it with pencil, every day she lays. Assume you want to hatch? Patience! Eat those first eggs and enjoy them, and just collect and date them, keep them in an egg carton on you kitchen counter (or other cool place, not refrigerator). When the box is full, just eat all but about 6 and then just keep the last 6 eggs, adding new ones and eating the older 7th one-- UNTIL she SETS. For a first hatch,. 6 eggs is best for her to be successful! When she SETS, you will place the 6 eggs under her, at the same time, so they will hatch at the same time--21 days after set. And the other pullet will be laying also, any day--so LOOK at their eggs and find differences (size, shape, shell color or markings--each hen will likely --have slight differences), so you can label the hen id, as well as the date. It is a great project--and you will enjoy learning about these lovely little chickens! Good luck.