A little drought is when your little isn't regressing for a longer period of time than is normal for them. Sometimes your little just isn't feeling little. Maybe they were too little for too long and just need a break. It's always important to check with them to make sure they're okay and feeling fine. If they say yes though, it's still very important to be aware that there may be something your little is unaware of that is wrong. Always investigate, but don't harass of course.