Introducing a bottle

I'm going to start introducing a bottle at 4 weeks (so in one week) per my LC. I have a strong letdown and my supply doesn't seem to be a problem so I'm wondering if I will need to pump at the same time as the missed feeding or if I can do it at a different time? We are planning to have my husband do one of the nighttime feedings so using that time to sleep would be nice but I don't want to hurt my supply. Also, how frequently did you offer a bottle at first? Thank you!