Presume you mean Bushnell, Florida, USA?
Does it look like a young version of this?
http://www.tampabay.com/sports/outdoors/article845890.eceI think you need to think about not just this piglet’s welfare, but also your capability, and the welfare of your other pigs.
If this is a wild boar, it will have a different temperament from domesticated stock, and may need much stronger fencing to contain as it grows up (even now it sounds like it is a handful)
You may have laws restricting or forbidding taking animals from the wild (which is what you have done albeit not deliberately), and laws on keeping them (in the UK they require a licence and come with lots of rules), particularly as they’re considered a pest species in Florida.
It is not fair to keep a pig on its own, and if your two females are destined for the table, what will you do with him when that happens?
As HH says, you would certainly be looking to castrate it if you are going to keep it, and they can live for 20 years, so be prepared for a long term wild pet.
Whilst cute now, are you ready to handle an adult wild boar looking like this
http://www.wildflorida.com/wildlife/mammals/Wild_Pig.php who has an inherent fear of humans. In the UK wild boar keepers rarely enter with their stock.
If longer term you go into breeding, you would not be able to keep two boars together, so he might end up on his own, which again is not fair on him.
I would consider three actions.
1. Contact your local animal rescue or wildlife centre and see if they’ll take him
2. Read up everything you can on wild boar, both legal and health wise and only then consider taking him on after castration.
3. If the rescue centres won’t keep him, seriously consider euthanasia by them as they best option for an animal that is designed to be wild not contained, who will put your domestic stock at risk if he breaks your fencing, and who you might not be able to handle in a few months time, and may harm you and/or your family.