Is it stress or something else??

So my husband and I are normally very good about tracking my cycle and avoiding particularly fertile days as we aren’t 100% sure we want another child right now with COVID getting worse. However we had date night a day before I was supposed ovulate last month and got “caught up” in the moment. I am now 8 days late and there’s been not a hint of a period. However we’ve also had ALOT of awful things happen lately with family and I think it may be stress. Thoughts?