Reducing pumping to 1 session per day, need advice!

I have recently returned to work and am planning to reduce to one pumping session per day. Various reasons make this the best choice for myself and my family. I plan to keep that 1 session until my daughter is 1 year (currently 4 months).

My current schedule is: 4:30AM, 9AM, 12PM, 3PM, 6/7PM

I am thinking to reduce as noted below but curious is anyone has experience.

Week 1: 4:30AM, 9AM, 12PM, 3PM

Week 2: 4:30 AM, 10AM, 3PM

Week 3: 4:30AM, 3PM

Week 4 and beyond: 4:30AM

Thanks in advance to all the BA working moms out there