So I've had this spot on my penis now for about a month, possibly longer and now I'm a bit worried as i don't know what it is, i haven't had sex in around 5 months and i aren't sure as to how it appeared, can anyone help or advise me?
Looks like a cyst.
Get it checked. It is a minor skin issue.
It does look like a Penile Cyst - I recently had one of these - they take about 5 to 7 months to fade away on their own. While some people deal with cysts themselves, this is not the sensible thing to do if you are not sure how to prevent infection.
To check whether it is a cyst press firmly on it with your thumb and it should push inwards to the main body of your penis. It should then take a second or 2 to fully ‘surface’ again - if you not sure about it, the safest thing to do is get a medical professional to check it.