How Often 2 To 3 Month Baby Poop

Hi Mummies how often will a mixed feed baby who is about 2.5 mths poop? I'm currently feeding my baby abt 60 to 70 percent breastmilk. However, his pooping frequency seems to have not stabilise. Sometimes only once per day sometimes multiple times per day. Any Mummies can share when will baby poop pattern stabilise?