Photos not syncing in iCloud

Since yesterday my photos won't sync in iCloud, specifically photos I took on my phone yesterday are not showing up on my iPad or my Mac. In addition sharing is not working properly. My husband shared an album and I went through it importing the ones I liked to Photos, but they didn't import. Is there some system problem on apple today with Photos and iCloud? For the record, I have everything set up correctly, these things usually work fine.