Do I need to pay quarter estimated taxes for my small business income if my husband's company withholds taxes?

I just started a small business earlier this year and I don't believe I have made more money than my startup costs just yet (I will do the math to confirm, but I think I have at best broken even). I don't have any other income this year, though in the past I worked a FT job and received a W2, withholding done by my employer.

 

My husband has a well-paying FT job where they withhold taxes for us. I'm trying to understand if I am obligated to pay quarterly estimated taxes on my self-employment income/our overall income, or if we can just adjust the withholding his company does to account for that. Could someone help clarify for me? Thank you!