Waters breaking??

So I'm 39 weeks pregnant and I've been having a lot of discharge the last few days but all day I'm getting like a bleachy smell off my discharge almost like a semen kind of smell?? Could this be fluid or my waters breaking?? Sorry I'm a first time mom and dont have a clue. Also I havnt had sex with my partner in over a week so it defo isnt from sex 😂😂😂😂

I'm in with my midwife in the morning should I say about the smell of my discharge?? I'm scared she'll laugh at me