should I give formula?

Jessica • Married for 10 years. 1 beautiful child with Clomid + Metformin. #2 born 10/2016.... He was our surprise baby. ❤️❤️❤️❤️
At the end of the day my milk supply is literally nonexistent (or it feels like it)... my little one screams at the breast usually for 2-2.5 hours before either deciding to drink or going to sleep.... I'm wondering if I should give him some formula?! I wanted to mix breast milk with formula but this kid screams as soon as I turn the pump on during the day to even try pump some.... any suggestions or ideas are more than welcome!