I understand that you are in a pickle. She is too young to be egg bound and too young to have you go fishing for an egg stuck. So it seems you have a predicament. She could have to pass a large amount of stool that hasn’t taken up enough water to work in into her system to pass comfortably and that is why it is sitting there getting hard and uncomfortable. You indeed may have to go after it with some lube before too much longer but if you could try to be sure to get some oils into her system and some liquids for sure and increase her water content for sure that is especially important. She needs more fluids. Not anything really special at this point just water and as much of it as you can be sure she will drink for now and safely pass just the safe routine way. That is the most important thing right now and that you monitor her poop specimens very closely. You need to keep a log of their color, size,, consistency weight, and I would hold on to them all until you find out whether or not you don’t have to get her to a veterinarian to see her for a visit in the next few days. *Just one more thing which might be nothing helpful at all but less dominant birds are known to hold their tails pointed down this way.  She is also a Welsummer right? And these from what I understand are lesser dominant birds so she would be demonstrating lesser dominance by pointing her tail down instead of up. Either way she looks very uncomfortable 

 and like she needs to poop. No bird needs to walk around like that looks like it feels anyway. Good luck with her! I cannot type tonight at all. So sorry.