She won't take a bottle!! :(

I EBF my 4 week old. We've been trying to get her to accept bottles for 2 weeks now (trying 2x a day with 1/2 oz expressed milk). She has only been open to it 3 times and still spits most of it out. I'm traveling in 17 days to get an MRI and will be gone for at least 8 hours! So I'm stressing out! I've heard of other methods like using a spoon or medicine dropper but I'm afraid she would just spit the milk from that out too!