iPhone 5 v 7.0.4 and icloud calendar issue

I have an iPhone 5 v 7.0.4 and all of a sudden entries I make on my calendar are not appearing when I log into icloud. I can make an entry via my laptop or pc and it will appear on my iPhone but not vice versa. I have tried deleting the account from my iphone and an iPhone reset but nothing has worked. If I make the same entry on my pc it appears as a duplicate on my iPhone!

Any assistance would be appreciated?