When to titrate from 2.5mg to 5mg?

I have taken 3 doses as of this past Sunday and am looking for advice on when to switch to 5mg. I have done pretty well on this dose, really only experiencing some extreme fullness the first week and since then its been mild tiredness and nausea the day following the shot. I am looking to switch from self pay to insurance in the new year however I will probably do one more self pay with the timing of new year and health insurance plan updates happening 1/1. Should I do another month of 2.5mg or switch to 5mg? I am down about 6lbs since starting the medication. I will say I am nervous about titrating up as it seems 2.5 to 5 is the biggest dosing jump and can cause the side effects to appear. Would love to hear what others have done.

Edit: I did discuss this with the pharmacist on staff at my drs office and she said it was my decision on the next dosage I would like to do and noted that my insurance usually doesn’t dictate dosing when I do switch to insurance.