About my work being posted online (Patreon)

So I just wanted to post something about this briefly,
I have found my work posted on various free sites around the internet. I'm glad people enjoy my work and go to the trouble of uploading it, and I enjoy making these comics, but doing so is also time consuming.
I  know that not everyone wants to / is able to pay $3 a month for these,  and I think that, after a period of time, they should be free for everyone.
So I'd just like to ask that people don't post my work on free sites until around 6 weeks after I have uploaded it to Patreon. That way everyone  still gets to see it, and it also gives me an opportunity to get some reimbursement for the time and work I put into making them and will  allow me to make even more.
If you don't think this is fair or have another idea please let me know.