Irregular periods

Jaquelyne • Sat, Jul 16 • Im 26 I have two kids my daughter is 9 and my son is 8months

So lately my CM has been very creamy almost like egg whites but it says on my period chart that my period is due today but another one says it's due the 20th but if it's due the 20th which is in 4 days if my CM stays like this does it mean what I think it means ?? I'm also 10 DPO