Hi ladies! Question for my fellow teachers

I'll go on maternity leave 12/23 and plan to return at the beginning of May. One question I need to ask HR is if this will affect my movement on the salary guide. Being that I've worked sept-dec + may/June, I'm still hopeful that I'll move up a step on the guide. I'm just curious as to what the policy is like in your district? I realize it'll be different based on all of our contracts and how long each of us is out, but wanted a point of comparison. Thanks in advance for any feedback you can offer!
Re: Tchrs - maternity leave & salary guide
Edited, since it sounded rude and I didn't mean for it to.
DD - January 2016