How do you introduce a bottle to a newborn

[aichi]

Wanted to know how and any tips on introducing a bottle of expressed breast milk to a 7weeks old baby?
Is this too late?

I've been breastfeeding my baby uptil now - which is going well and established, but I'd like to introduce a bottle as I want to go back to work&let my husband feed her now and again.

Currently we're using Medela's teat. Should I try different teat or will that confuse her?

I introduced a bottle at 5 weeks I think - just put it in his mouth tbh! Started with a TT Closer to Nature teat but decided it seemed a bit too "easy" so switched to breastflow.