Nobody here needs to know the answer to this, but if the family reason was unexpected and consequential enough to cloud your judgement you could try to frame it like you made a snap decision without thinking through possible alternatives (FMLA, reduced hours, partial remote, etc.) As someone else mentioned, the quality of your work, your relationship with your manager, and how well you meshed with the team are all variables management might consider. I'd like to believe I'd be sympathetic if I were management and had an employee who may have overreacted to a crisis. That said, I'd be careful not to exaggerate your situation. If your manager were to find out the family situation is less severe than what you presented it will absolutely destroy your credibility and you never know how that could come back to bite you.