You're not alone!
I didn't look forward to coming back to work full time and got very lucky when I scored a part time position. So I work 4 days a week. While 3 of them are 6 hour days, I have an hour communte each way, so it feels like an 8 hour day...
BUT, there are days when for the sake of my personal sanity I'm happy to have come back. I'm able to see more than my little house and neighborhood park, and my self-confidence is stronger knowing that I'm also helping with our financial burdens. I'll admit, there's days when I miss dd immensely and can't wait to go home. So I just plug along as best as I can. We need my income, and there's no option for me to be a SAHM. However, I am in the process of trying to boost some additional income through home business ventures so I can eventually WAHM.
My working hasn't affected my bond with dd. When I'm home, I devote as much time as possible to dd -- we play, watch the Wiggles (sort of, she's 8 1/2 months and likes the songs), go on walks, do errands, etc. But we're together and that's what counts. Dh watches her when he gets home from work on days where we overlap, so she also gets bonding time with him which is really nice.
It's not easy, but it's doable and I don't think working is going to have a lasting effect on your bond. You may hit some hard times with the inital transition, but change is hard! Just know that over time it will get easier and maybe going back won't be as scary as it seems! And you can always come here for support.
Let us know how it goes!