Protection or no protection?

Hope
My partner and I have been in a committed relationship for quite some time, we both have a clean bill of health (STI free). We never used condoms because I have always been on birth control. Then, I got pregnant, while on birth control. 
My question is, while pregnant, do you use condoms with your partner? If not, is there a time in the pregnancy where you should start? 
We have a very active sex life and this is a pretty important question for me. I like to do everything possible to make sure everything is great for my baby. 
Let me know what you think ladies!
Thanks in advance!