Lumpy discharge before period

I know that discharge before and after a period is usually thick and white, but can it also be lumpy? Every month I get the same and it’s close to the discharge that comes with a yeast infection. Theres no odour, itchiness etc so I think it’s more on the normal side, but it’s just getting me down how bad it is. No chance of an STI, and I have had yeast infections in the past which feel different to this.

Thanks