Is there a gap in your employment history? Its not the end of the world but you should expect to talk about it in a job interview.
If asked, be honest and open, explain why there is a gap and if possible turn it into a positive.
Concentrate on any experiences or qualifications you gained during your time off, talk about soft skills or life skills you developed and explain how they can help you with the role you are applying for.
Life is rarely simple, so a gap in your CV is nothing to be feared.