Can you have lip fillers when maybe 1 week pregnant?

Hi @leahkatiex! I would avoid dermal fillers and botox while pregnant and breastfeeding--there is not enough studies done. Best of luck, Dr. Nima!

Fillers are not contra-indicated during pregnancy. That said, any procedure has small risks (such as allergic reaction etc). Because of this, you may be advised to consider waiting until after pregnancy. 
Another consideration is that your face and lip volume will likely increase during pregnancy anyways, so you may not want to get fillers now just to find out it looks overdone in a few months.

There are no studies on having fillers while pregnant, but many women have fillers before finding out they're pregnant and have healthy pregnancies. I notify my patients about the risks and the decision is left up to them. Best, Dr. Emer

In this country, even when we know things are safe, the legal nightmares physicians face makes it difficult.  While I can think of no real risk, I would not do the injection in my office.  But if you can find a qualified provider, not some cheap deal, but a very good provider who has experience, then I can't see a risk, other than infection, which is very rare.

For obvious reasons, there have not been any clinical studies of the impact of dermal fillers during pregnancy. While there are bound to be situations where fillers have been performed on a national level on pregnant women accidently without any reported adverse events, the treatment is not worth the risk.