How are you affording daycare for multiple kids?

Husband and I really want another kid. We both work full-time. The price to put two kids in one of the reasonable daycares in our area would be $3600 a month. Most others would be closer to 4-5k per month. It’s mind blowing. That is significantly more than our mortgage and we quite simply cannot afford it. How do you guys do it? Any advice? Tips or tricks? Unfortunately neither of us make enough to live off of one income and don’t have family that can help either.