[MisplacedDreamer]

The fact that you said the place is pretty stern about trying to convince you to keep the baby is a warning sign. They may use scare tactics, may not have the proper healthcare staff doing the readings or using the equipment, or may lie to you to convince you to keep your baby. At least that was my experience when they flat out told me I was pregnant even though I knew I wasn't. (Yeah, shame on me trying to trick them.)

The most important thing is to figure out how far along you are. Depending on how much your household makes, you may qualify for for some aid. I know in the US, after you get child support set up, you can usually get WIC and sometimes food stamps depending on how much your household makes. If you are kicked out of your house because you decide to keep it, some cities have set up group homes for teenagers with young children to help them graduate high school.

Another thing you can do is look at other clinics too. I would recommend seeing if you can find a Planned Parenthood if you are in the states. If you want to keep the baby or if you want to have an abortion, they will provide unbiased advise to you. They also have a sliding fee scale and may be able to recommend referrals for a low-cost abortion.

(Experience with the US adoptions) Adoptive parents may pay for medical expenses in some states, but they are not required to and usually that is negotiated with their lawyer through private adoptions. If it is through the state, then they usually don't but I think the state will cover some if you are putting the child up for adoption. The state will not allow you to choose the family usually, that would be a private adoption.

What country are you in? It may help to give advice.