Sienna Miller is enjoying motherhood so much that she hasn't even hired a nanny yet.

In her first sit-down interview since she and fiance Tom Sturridge, 26, welcomed daughter Marlowe in June, the 30-year-old actress told Harper's Bazaar U.K. (via London Daily Mail), "It's just been the three of us, which was amazing, and exhausting. We are going to get a nanny, but it felt important to first learn for myself who I was as a parent."

She added of childbirth, "It's still the most surreal thing, that you can create, that I grew this life inside my stomach, her eyeballs, everything - every little fibre."

My body’s a completely different thing to me, it’s not mine - all the attachment to its flaws or any aesthetic attachment is gone. ... You understand what breasts are for; and I have such enormous respect for my body because of what it can do."

At only a couple months, Miller says Marlowe already has a personality of her own. "And I'd expected that she'd be this extension of me and I'd instantly understand who she was because she'd come from me, and then you realize that they are their own people entirely. Very connected to you, of course. But they're their own person."

Check out a behind-the-scenes look at Miller's Harper's Bazaar photo shoot below: