Temporary ligation

I would like to know if it is permissable for me (age 25) to have my tubes tied? I am currently expecting and once I give birth I would like to tie my tubes instead of taking the pill and breastfeeding as it may cause hormones in my milk (thats what I think) also I know my husband would not want another child now at all. He did not take well the fact that I was pregnant in the starting. I am also not ready for the responsibility of a second child. My husband does not like using a condom and I am reluctant to use the pill due to maybe possible side effects on the baby feeding on me. Please advise.