If she has successfully taken a bottle before then you could be okay if you pump, but if she hasn't there is a good chance she will refuse it, I got lucky with my first she was such am easy baby, she took bottle or breast and never had any kind of nipple confusion
Schenner am having the same prob with my 4 months old. He used to switch between bottle and breast easily. Its been 2 weejs now and he does not want the bottle. Is your daughter taking her bottle now?
I tried to go to my work Christmas party with my first when she was 3 months. I was exclusively nursing and i pumped and left a bottle with Grandma. She would not take it at all! I had to come home early from the party. I had tried unsucessfully myself to give her a bottle and people said if i was around to smell my milk and she was hungry enough she would take it. She did not! All babies are different though and your little gut is mych younger so he may take a bottle and then relatch. Good luck.
My son had a bit of nipple confusion but now that hes 2 months i can do both bottle or breast. I work with nurses and they told me if baby is hungry enough theyll latch. Try the bottle for an outting ...I suggest you go out and enjoy yourself. We all need a break!