one girl & 1 boy....anymore kids after?

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What's everyone's opinion of 1 of each & wanting more kids? I thought about a 3rd but part of me feels like I couldn't do it, I don't know. Secretly only like 5% of me wants another one but then I'm like omg girl your crazy & talk myself out of it. My husband is good with one of each. I am too. But how do y'all do it with more then 2?!!! What's life like with 3 under 5?