Hello: Considering your situation, it is usually not recommended to take diet pills, not to mention that you are pregnant now. Diet pills are not good for your health. If you take them now, you must wait until your metabolism is completely clean before you get pregnant, otherwise it will definitely be bad for your fetus. You know, the first three months are very important for the brain and nerve development of the fetus. If you want to lose weight, you should start with sports, such as running, yoga and dancing. But it's no use, you will still get fat after pregnancy.
If you are fat now, don't eat too much after pregnancy, otherwise it is not a good thing to gain weight too fast.