I think that it would really jeopardise your supply at this stage, the milk production is still hormone driven and if your baby stops feeding regularly then your supply could dry up.
At around 13 weeks your supply will switch from being hormone driven to being based on supply and demand after this time you could switch very slowly to using bottles in the day by introducing something like one bottle feed per week, keeping them as far apart as possible as they are introduced (for example doing it in this order: 11pm, then 7am, then 1pm, then 7pm, then 10am, then 10pm)
Hang on in there - 6 weeks is still very much "boot camp" territory but you're teetering on the edge of it now. There should be a big growth spurt about now or very soon and after that things should settle down a bit.
If you decide to go for the 13 week thing then the main sign that your milk production is changing is that your boobs will feel softer and "empty" between feeds rather than full and engorged, you will probably stop leaking as well (but not everyone does).
If you really feel you want to introduce a bottle now I'd stick to one or two a day, as far apart as humanly possible, and be really strict with not bottle feeding at other times (unless you're going to be away from the baby or similar) because your supply will adjust for any growth spurts etc, compensating for growth spurts with extra bottles can be damaging to supply in these early days too.