Pumping advice

CMH

I need advice. I just started back to work today, my son is EBF. I only had enough pumped and stored to last him through today without me, he eats 5 oz every 2-3 hours, and I’m pumping every 2 hours today at work but I have only been producing 2-3 oz combined since I started this morning so I don’t even have enough for him tomorrow so far. What do I do? Give up breastfeeding and just formula feed since I’m not producing enough? 😩