Anyone have tips on how to use a Haaka?

Nina

I have a 1 week old baby and we have been doing great with breastfeeding. I don't want to start actually pumping, but I have a Haaka suction one that I wouldn't mind using to get some extra milk for the freezer for babysitting in the next month or so. Anyone have experience using one who could give me some tips? Should I use it after baby is done eating? I have no idea where to start and don't want to mess up breastfeeding like I did with my first. I do have a regular pump too if that is better?

Thanks in advance for any advice 💕💕