Yes, It is okay to switch from Belara
to yasmin. There is no problem or harm with shifting to yasmin.
Both are combined estrogen
pills. Yasmin has similar side effects as Belara.
Start taking the Yasmin pill from today itself for better protection.
If it is more than seven days since you completed Belara use back up contraceptive method ( like condoms) for one week.
Your body may take some time to adjust to the medicines in the different brand. So don't be alarmed if you develop spotting in between.
I hope I have answered to your satisfaction