u/Spiritual-Nerve5072

Hello everyone! I’m a new mom of a premature 3 month old and I’m have a hard time being okay with myself. I only got 2 ounces this last feeding and she normally eats 4 oz. I had to go get similac and I’ve been beating myself up. I pumped for 30 minutes 3 hours prior and when I pumped again I only got 2oz which was enough for the feeding since she had 4oz one hour before. I’m feeling awful about myself because I feel like I could’ve been more proactive on my supply. It hurts my heart knowing it had to get some formula for overnight. I’m still going to pump and continue to give her breastmilk when I can but I just keep beating myself up over this formula. Is it awful of me to switch so early? Is it bad to go back and forth from breastmilk and formula? I feel like I’m overwhelming myself over something so small to others. Any thoughts would be helpful. I just need to know I’m not doing a wrong thing. My fiance is so calm and we talked about what I can do to make myself feel better and do more to help with lactation, but I’m still on the rocks with myself.