I'm wondering if anyone has done/tried this. DS is 10.5 months old. I'm considering switching him to cows milk at 11. He has been breastfeed, but the past few weeks my nips have been so sore I can barely handle it. I pump for daycare so he has one 4 oz bottle. The other night he totally clamped down on my boob and I can't even describe the pain. I seriously thought he detached my nipple! He's bitten a few times before but never so hard. ANYWAY, I was thinking tonight about how it does t hurt as bad when I pump. LO2 is due in late Feb/early March. Would I be crazy to pump and freeze milk for that LO in case I have supply issues I can reach in my freezer stash? I had major supply issues with DS so maybe this is a way to prevent it. But would I be crazy to deprive him of that milk I'm saving for lo2??