Period

Abigail
So I'm a year with no contrecption 
I'm due today, and I'm like clock work and yes I know a few days here and there but that's not what I'm talking about, I've slightly started my period today, but it's like snot, which is really weird I've never had this before, it's not blood, it's not discharge I don't know what's happening and I normally come on with a bang! But nope it's a slow process, no pain, 
I've been having really good discharge that is sync with my ovulation
So what is this 'snot' like period?