How do we file? my husband has a w2 but I started self-employment and will get a 1099. Do I file my new income with his at the end of the year?

My husband has regular work and we have always just filed jointly on his w-2. I started working from home and am considered self-employed. How do I pay quarterly taxes on here or do I just wait until the end of the year and file with his? Thanks for any help.