Help?

Claire • Married the man of my dreams.😍 Living my best life. 💞 Baby Reynolds due December 2020👶🏼

So my period isn’t supposed to start for another 2 days. Last night I starting to bleed, but it was very very light. This morning I’m not bleeding anymore. This isn’t usual for me because my periods are very regular. Any ideas on what could be the problem?? If there even is one.