Hi. Congratulations on your pregnancy! So, glad you stopped
phentermine. That's the right step. Remember that it washes out of your system when you do that. I found a link to give you that talks about it's use before you realize you are pregnant. There aren't a lot of studies, they say, however, the ones that exist does not suggest any link to usage when conceiving and in very early pregnancy with birth defects. https://www.healthline.