Exclusively breastfeeding. When to start pumping?

Sara

First time mom here and I have been exclusively and successfully breastfeeding my babygirl for 25 days now. Question is how and when is a good time to start pumping and introduce a bottle? I still want to mainly breastfeed but want to have backup milk and have it just incase someone needs to watch her. I dont want to introduce it too soon and have nipple confusion and I dont want to introduce it too late and have her not take a bottle. Any advice and tips help. Thank you! 💕

*Also any bottle recommendations ? I have some nuk bottles. Wondering if those are good or if there are better.