Irritated

I dont care what anyone says but as long as baby is feed thats all that matters. So my LO will be 2 months on thursday and i have decided that i want to start doing a little fornula at night with my breastmilk. I have been doing EBF but I also want to start getting our LO familiar with bottles so my husband and 4 year old can have the chance to feed her. Well since i am a SAHM i have some family judging me asking why would i even want to bottle feed or start any formula when i can just feed her by breast all day/night. I am more irriated then anything i mean i really don't think i am a bad mom and i just dont get why people have to make me feel bad. I carried her for 9 months and have only been EBF so why is it so bad to start bottle feeding/supplementing fornula? Thanks mamas just had to vent 😭