I second the suggestion to speak to a BF counsellor in real life to work out pros and cons of what you want to do, OP.
There is a lot of evidence that early intro of bottles of formula reduces the chances of establishing happy and effective and longer lasting BF. Obviously individual experience can vary, but we know, from both theory and practice, that night feeds are especially important in this. Missing night feeds means the breasts can go several hours without being 'used' - this is uncomfortable, even painful and even risky (mastitis) in the short term, and in the medium term it drives down milk supply.
Put bluntly, women who combination feed are more likely to have their choice to BF undermined, and they end up fully formula feeding. It's not inevitable, and some women manage it and maintain BF for as long as they plan to. But you can't predict if you're going to be in that camp....
Please talk it over, if BF is important to you. The health outcomes of BF versus ff versus partial BF have also been compared in a number of studies. Guess which wins out 😀😀....again, this is impossible to predict in individual babies, though. But one easily accessible study to look at is Quigley et al, UK Millennium Cohort, infant feeding (if you google using those terms, you should track it down).
hope this helps 😀