It doesn't, and what you think doesn't matter, because people aren't taught your idiosyncratic concept of spelling and punctuation. Maybe it looks weird to you, but the shortcomings of your own education in written English are neither the fault of your readers nor their responsibility to suffer.
Yes, you do, because that's what the full-stop indicates. End of a non-exclamation, non-question, non-ellipsis sentence.
I don't care if you want to cultivate your private orthography, by all means do … for yourself. But given you're publishing your works for others to read, you had better use rules and guidelines taught to and referrable by the common public so that they can derive and digest successfully the notions and messages you intended to convey.