Book an appointment to your pediatrician and ask that he do two things:
1. Get a referral for your daughter to be evaluated by a speech therapist.
2. Call your State's Early Intervention Department to make the referral to have your daughter evaluated or give you the number for the EI Department so that you can make the call yourself.
All this should be ASAP. Your State's EI will come to your home to do the evaluation but there is a waiting list so you want to call and make the referral tomorrow. If your daughter is shown to have a certain percentage of a delay (sounds like she will), they will provide your daughter services in your home, free of charge. The therapy is always play-based and fun for the children. The evaluation is free of charge also.
You also want to have your daughter evaluated by a private speech therapist as well, hence my recommendation that your pediatrician get the referral. My experience has always been that the specialists are usually more honest and candid when you are the one footing the bill. The people who will do the eval and therapy through the EI department are paid by the State, so their loyalty is with the entity that pays their bills. Doesn't mean that you can't benefit from their services but I do think a private speech therapy evaluation would be a smart move.
If your daughter does qualify for services from EI, I would urge you to contact your nearest disability advocacy association and ask that they assign a parent mentor to help you and the EI department develop goals for your daughter. It really helps to have another parent there who has the benefit of 20/20 hindsight.
Hope this helps. Please call your pediatrician's office tomorrow.