Breastfeeding moms

Just wondering if you could just EBF without having to pump would you? I am currently EBF but wondering about pumping to start a stash. I am debating even starting a stash since i dont really know if i really need to since i am a SAHM and dont really go to many places. I just dont know if i want to start pumping if it will effect my supply. Right now without pumping my right boob seems to produce alot so i just dont want to become engorged or end up getting metastasis. The reason i am thinking about pumping and storing is if i ended up wanting to only breastfeed for a total of 6 months and then have enough stored away to feed her for another 6 months. Sorry if this sounds stupid to ask but i just dont know what to do and this is my first time breastfeeding so any help or tips would be very helpful!