In my unscientific opinion, the topic bloggers discuss the most seems to be how sorry they are for not posting more often. It’s ok to post once a week, or twice a month, as long as what you got is good stuff. I recently noticed a blog that had a post from yesterday that said, “Sorry I haven’t posted in a while.” And the previous post was a month ago, also apologizing for not blogging more often. One lady was having surgery. I think that trumps your blog.
If what you post is intriguing and engaging, it will get readers.
Have a great day!