If you still want to nurse her when you get home from work you need to get her on a schedule of offering her your breast at the times you hope she'll nurse and bottles at other times, one or the other at least 3-4 hours. The reason I say this is because if your body can't figure out how much breastmilk your daughter requires on a regular basis it will stop producing it. Your body can only do what it knows, it's as simple as that. And, yes, you will more than likely lose some of your supply if you exclusively pump as a baby's suck is stronger.
I was really worried when my daughter wouldn't nurse, she could go all day without getting maybe no more than an ounce into her (even when I was with her) and I was terrified she would dehydrate. Her pediatrician said to offer, to remember there was no way I could "make" her nurse or take a bottle of breastmilk, I could merely coax, and that her body would tell her when she should eat. It was hard on me mentally because I was afraid I'd lose my supply of milk.
But I worked out a schedule of sorts where I got up early to nurse her, then got us ready for work and Nana's house, she was offered bottles every 3-4 hours while I was away from her, I pumped at work every 3-4 hours, nursed her as soon as i saw her after work, (if she would, sometimes she'd want to wait until 7:30/8 p.m.,) then again at bedtime. She slept through the night from the time she was 2 weeks old so I never dealt with middle of the night feedings with her. She met her milestones and where she should be on the growth chart so it all worked out. I hope it does for you as well.