Baby laundry detergent help...

I'm needing some help figuring out what detergent to use to wash all my babies clothes in before he is born.. Everyone says I should use a baby detergent, but I wonder if that's really necessary as all of mine and my husband's clothes will be washed in our Gain detergent pods, but I want to do whatever is best... is there any baby detergent that come in pods instead if liquid? Thanks in advance!