Can't log today ??

Lauren • 31, partner is 35. We have two children, William 10 & Georgia 2. I am currently pregnant with baby 3. I work with domestic abuse victims in the north east. Partner is a roofer/joiner.
My calendar says I can't log future dates (for Sunday 05/04) but I'm in the UK. And it is Sunday!! Lol could someone let me no if it's glow or if there's a setting I can change?