Mucous in stool--normal?

Louisa • Wife, runner, teacher, decent cook, proud cat lady. Baby girl due 5/18/16 💗
Hi everyone,
Sorry this is gross but I'm 23 weeks pregnant and the last couple of times I've pooped, I noticed whitish mucous on it... It was a little last time and kind of a lot this time. Has anyone experienced this? Constipation has been an issue for me this pregnancy, so I'm hoping that's it. Thanks :)