spouse visa - Financial requirement; do i need to show all the jobs

Hey greetings for they day..
Struggling wd the uk spouse visa application in regard to financial requirements. Our situation is like working as under cis construction scheme for 2 months as self employed den 2 months at heathrow but couldnt able to continue so again after 2 months of employed shifted to self employed so nearly she made close to 18600 combining from both income can we show 2 months heathrow and combine both ? Self employed n employed.