Congratulations on your daughter!
Have you been able to meet with a lactation consultant? They are trained to helped with latching problems. You can call the hospital where you delivered and ask if they have one, or you could ask your OB-GYN.
Things to keep in mind are: Your milk supply at this point depends strongly on how often your nurse or pump. You need to keep pumping every 2-3 hours to establish good supply.
Just because she isn't latching yet doesn't mean that she won't! Keep offering her the breast so that she can attempt.
My daughter preferred "football" hold for nursing and didn't figure out latching until she was 5 weeks old!