Thanks so much for your help! This morning I gave him cereal at 8 because I didn't want him to be hungry, and he did eat it (about 10 spoons) so I guess he was still hungry. I work 3.5 days a week and hate to give him formula in a bottle when I'm at home. I thought it's not good to feed him during the dag because milk will increase and I can't pump at work. Why?
1. I have to do it in the toilet or in my car
2. I work with adolescents with behavioral problems and I don't want them to accidently witness it, I wouldn't feel comfortable
3. there's just no time to do this I have a lot of work and only 25 hours to do it in
4. no other colleages of mine have ever done this
5. almost no milk if I pump
So I guess I could feed him during today (I'm at home in the afternoon). Do I keep doing this or just for now for stimulation? Or maybe just quit and give him bottles...

I use a manual pump (no electric) and it's just very hard to express milk. It takes about 30 - 45 mins for 20 ml or less, it's just not worth it! I get so frustrated...