la2012

LA2012,
Relax a minute, ok? I recommend you read every single post on the first 4 pages of this forum, then start asking questions. Why? Because you will find that most people on here mean very well, but sometimes, things come across wrong when typed and you can't see/hear their faces. And you will not always agree with all opinions you read here, so you just have to sort thru that.
Nothing wrong with being young, in love, and poor. In fact, the majority of us started out that way. You have a long road ahead of you, trying to be together in the US, and it will be expensive, too. I would say that $5,000 is pretty close to the end amount of money you will spend, but it can be spread out over a year or more. There is an initial fee of $455 just to file a petition (I think this cost actually went down after we filed last August, current fees are on the USCIS website), there is a medical fee of $213, there is visa fee of $350, and that is just to get approved visa. And then there is the cost of a plane ticket, typically around $1,000, airport taxes, CFO fee, the cost of a marriage license, then filing for Adjustment of Status (AOS), around $1,070, and that should be done ASAP after getting married. And as mentioned, none of this includes the costs of food, travel, and lodging to and from MNL.
Yes, it is expensive, but you don't need to have all the money at once, you can either save it up and have it set aside, or just pay as you go. But it would be really bad to pay for an application, and an exam fee, only to not have the money for the visa fee. So I say save at least $2,000 before you apply, or at least know you can have it saved by the time you will receive your visa (this can take from 2-5 months). Once you get your visa, you only have 6 months to get to the USA. And once in the USA, only 90 days to get married. So there are time constraints.
As I said up front, relax. Everyone here is on your side, we are all doing the same thing, but you are new here, and your question is a hard one to answer. You will figure it all out, and most here will be helpful. Lots to learn here, and as TCO said, you will grow in the process of learning. Wish you the best on your journey, but I hope you take my advice and read a lot here. As you read, you will have many questions, but if you keep reading, all of them WILL BE ANSWERED, I promise.
Salamat po and walang anuman po!