Is he cheating?

y'all are still young, test him than see if he's cheating

You have a suspicious mind which is not good for a healthy relationship. Carry on regardless till you catch him red handed .Then dump him.

If there is no trust then maybe it is not the best situation. I will say this though do you have a reason to think he is or do you just have a bad feeling? 

Seriously, most of us guys have cheated at least once, many of us more than that. He may be one of those who don't. Until you learn otherwise, accept it as he doesn't.

How do we know if he is cheating?  If you don't trustthe guy, then why are you seeing him?  Maybe you like being all anxious with your stomach tied in knots?

if there are no signs than believe him. 

Tanner, the issue I see here is not whether he's cheating, but why you don't trust him at his word. If he's caring, sweet, and loyal and has never given you any reason to think he's cheating, you're the one with a problem.

If you are unsure about your boyfriend, you need to question yourself if maybe you are just confused as he may be going out to see 'his friends'.

Your mind goes overboard thinking if he he is being honest or not.

Think about your own life. Are you sociable? If so, that is a bonus. If you have a good friend (girlfriend), then talk it through with her. She is YOUR friend, so hopefully things may work out after talking to her.

I have to say I have been cheated on many times (I am older than you). As long as you are happy with your boyfriend, then I wouldn't worry so much, but if you notice (if you live with him) he is more outgoing than you, you need to be more positive yourself & try to feel more confident.

Just look after yourself and DON'T be so stressful. Life is too short.

I don't think he's cheating. If he stops being caring and sweet to you that's the time you worry about him cheating on you.

He’s still young and have no plans whatsoever to stay permanently with you so just give him space and let him enjoy his life 

You are not the only one entitled to his co ck!