If I am a stay at home wife & mom, can my husband claim me as a dependent since he is the sole income for our household?

[xmasbaby0]

No.  A spouse can never be claimed as a dependent.   You file a joint return.   You can file a joint return even if one spouse had little or no income.

When you file a joint return, you and your spouse will get the married filing jointly standard deduction of $27,700 (+$1500 for each spouse 65 or older)  You are eligible for more credits including education credits, earned income credit, child and dependent care credit, and a larger income limit to receive the child tax credit.