Сколько времени занимает сцеживание?

No, don't pump that long. Pump less time more often. If you have a heating pad use that, massager, look at pics of baby while you pump, listen to babies cry, while your baby feeds.

If its working for you then I don’t see what the problem is. I pump 20 mins 3x a day while I’m working and get about 7-8 ounces which I feel is not a lot but it’s better than nothing to me. I breastfeed in the morning and evenings, and all day on the weekends (with an occasional formula bottle). I’ve seen some people pump 9oz in a short amount of time but they are overproducers so it’s not realistic. Maybe play around with power pumping or try lactation cookies to see if it will boost your supply.

I never responded to my pump in the same way I would breastfeeding. It’s definitely different from nursing however it might be beneficial to see if your area has a lactation consultant you can get an appt with. Some programs offer them for free. You could try to play with pump settings as well, try different speeds, etc. Some women respond better to manual pumps. Water intake should be at least half of your body weight in oz per day. Make sure you’re eating about 500 extra calories daily and lots of protein.

That seems like a long time to me.
I'm pumping and get a total of 2-3 oz within 15-20 minutes.

How often are you pumping? I would add one power pumping session a day and you should be pumping at least every two hours. Like pp said up your fluid and calorie intake.

I think that’s a little long to be pumping,but I could be wrong. It’s been a while since I exclusively pumped however, I would look into power pumping. also increase your water intake& drink coconut water if you can stomach or eat some oatmeal and just latch baby on the breast as much as possible. The baby nursing will help produce more milk then just pumping for 45 minutes.