I want to clear my credit card debt or should I save money instead

[2015mom]

Hi I have two credit cards which are interest free for a long time... I think one will charge interest in 2018 and the other end of 2017

I am going to go on maternity leave so don't know whether to just try and save what I can from my income or just clear credit cards

Reviewing saving money on bills by using less electricity and light and other stuff but not much I can cut money ob