Hi girls, hello, I wanted to ask if anyone has had this at 16 weeks pr…

Hi girls, hello, I wanted to ask if anyone has had this at 16 weeks pregnant: greenish discharge and a feeling like my breasts don't hurt, although they had already stopped hurting before — only when I walk a lot they swell. I'm very worried, tomorrow I'm going to the hospital to get a swab. Please share, advise, maybe someone had something similar.