Beyonce had taken a subtle dig at those insinuating she has had lip fillers due to how swollen her lips look lately. Posting a photo with focus on her lips,her shirt read,Preggers...In essence,she is saying the reason for her puffy lips is her pregnancy.
In addition,her representative, Yvette Noel-Schure, said in a statement released to Gossip Cop.

'Did you know that in addition to weight gain there is often a dramatic change in the blood flow in the system and increased fluid causing swelling?,' Do you know that often women's gums get swollen? Do you know that it sometimes affects our speech, our ability to chew intently and a host of other things?'