Late period advice

So my period is 6 days late, they do normally fluctuate when they arrive but have finally managed to narrow down right time scale, I’ve had late ones before but do the typical test and come on next day!🙄 I’ve been having a lot of cervical mucus recently (creamy white and sticky) normally happens but only for a few days where as this has gone on for nearly two weeks, no smell, itchy, burn etc so not infection. I’ve been extremely moody and irritable past few days and yesterday and today my boobs have been extremely achey. This happened to anyone else? I’m assuming just sign of my period finally raising its ugly head but unusual for me to have cervical mucus so much I haven’t done a test yet as think it’s too soon!🤷🏻‍♀️