Show a Popup Maker popup for the first, third, fifth, and sixth+ pages only.

popup-maker-1-3-5-plus-pages.js

/** Set up the page counter in the browser's session storage. */
(function(){
  let pc = parseInt(sessionStorage.getItem("page-count"));
  if (!pc) {
  	sessionStorage.setItem("page-count", 1);
  } else {
	if (pc >= 5) return; // Can stop counting now.
	sessionStorage.setItem("page-count", pc += 1);
  }
})();

// Make sure the function (IIFE) above runs before the following jQuery.

jQuery(document).ready(function ($) {
	// Display a popup on 1st, 3rd, 5th, and 6th+ pages.
	$("#pum-1343").on("pumBeforeOpen", function (e) { // Change #pum-1343 to your popup's HTML ID.
		let pc = parseInt(sessionStorage.getItem("page-count"));
		const doSomethingPages = [
  			1, 3, 5
		];
		if (doSomethingPages.includes(pc) || (pc >= 5)) {
			// Don't need to check for conditions, but need to check for a cookie
			// for some reason. So, we'll just check for the default cookie for now.
			// If the default cookie exists, don't display the popup.
			if (PUM.getCookie('pum-1343')) {
				console.log('[PUM] Preventing popup because of cookie.');
				PUM.preventOpen(1343);
			}
			return;
		}
		console.log('[PUM] Preventing popup because not on page 1, 3, or 5+.');
		PUM.preventOpen( 1343 )
	}); // Listener
}); // jQuery

// Add this jQuery code to the footer area of your pages using your theme 
// options or a plugin like Insert Headers Footers and Code Snippets.