Dear tiffany54321,
it is hard to tell for sure without an examination. My preferred lift is a lollipop lift when a periareolar won't do (ie greater than 2cm lift required). The lollipop technique was created by a Canadian plastic surgeon named Elizabeth Hall-Findley and treats the breast as a...
Since you are pregnant, elective surgery is not recommended. Just wait until you deliver and finish breast feeding to see what size you are and then decide if you want to remove your implants.
In general, saline (a relatively innocuous substance) leaking is not going to cause issues as your body will likely absorb this. Risks include damage to interior breast tissue or even the chance of the implant breaking through the skin, if it develops a sharp edge. The implants can be removed...