Hello janine_xo,Thanks for your question.To the best of my knowledge, there is no clear indication that you cannot get lip filler while pregnant.That being said, there are things to think about before you have a discussion with your injection specialist.1. Lip filler is made with materials that sometimes have equivalence to human tissues and sometimes do not2. Hyaluronic acid filler or your own fat are probably safest3. Local anesthesia is used for most filler injections and so your fetus may get exposed to these medications4. Many filler are grown in bacterial media which means there may be some cross-reactivity in your blood that your fetus is exposed to.5. Fillers are not tested on pregnant women, so there really is no safety data available6. Injectible filler placement is an elective procedure, so can really wait until you've delivered your baby.I hope this was helpful?Take care,Dr. Shah