unprotected sex for first time

So I had unprotected sex for the first time, BUT I didn't have an orgasm or feel my self ejaculating, being because we didnt do it for long, BUT when I went into the bathroom to clean up, I pulled up on my penis, and a little bit of cum came out, only a little bit.
should I worry?

No you shouldn't worry. If the intercourse didn't last long then it's not strange that you didn't ejaculate...you would know if you did. And the little bit that came out is what's known as "pre-cum". Almost all men leak just a little clear or white fluid before they actually come, sometimes just from being aroused. There's nothing for you to worry about. Just know that that pre cum is often unnoticed and there is currently medical debate as to whether or not there is always sperm in pre cum. There certainly can be but it's argued that if you have urinated since the last time you came then you can wash the sperm out. I'm not sure that I believe this theory and I would play it safe and just use a condom.

Read the "sticky" about pre cum at the head of this forum.
And also, you should worry. First time intercourse is clumsy, awkward, and sometimes embarrassing with very little knowledge or concern. Hence the misuse of or the neglect to practice birth control. Many young people can not wait for their first experience and really tend to rush into things, not giving much thought to what possibilities lie ahead. I know it is unfair to suggest researching the situation before hand in its entireity, but at least give a passing thought about some kind of protection.
Every person now days knows about birth control. It is splattered all over the television, kids talk about at school, you pass it in the aisle in the grocery store and classes teach it.
There is planned parenthood where many young people go to talk to some one in confidence. Parents will never have to know and you can spare mom and dad the pain of telling them that they will be granparents.
Lots of first timers don't even know if they have had orgasm at all. They think they did, or maybe not. Pregnancy is bad enough if it's an accident which you really can't call it that because you should know how to not have this "accident". Think about STD"s, nasty little diseases that are sometimes hard to treat, worse yet, some can't be treated at all.
Girls, if you are thinking about it, your going to eventually do it. Plan ahead and get on some birth control.
Boys, same for you, grab a pack of condoms and when the time comes, your good to go. Just watch the expiration date, when that passes, throw them away.
So Mr. Guest, you should worry. You may have gotten lucky this time, but what about the next time?