Julidochromis Marlieri not eating pellets

[Ethalid]

I feed all of my cichlids on pellets and they all take then with no problems apart from one female juli that has to be fed flake because when I give her pellets she just brings them back up almost like she cannot swallow them, which is weird because I have fed them in one of my other tanks and even the cardinal tetras can eat the with no problems. Can anyone give me some suggestions on what i can try to get her to swallow them?

[Clare]

Is she holding babies or eggs, many females try and eat when they are holding but end up spitting it out.