hermi plant 4 weeks into flower

Anything i can do to save them .....there are a few pods on the branches and hardley any in the buds are they going to explode with seeda soon

if you leave them to spew their pollen, yes, you will likely get seeds
if you pluck them, and are very good about it, mist with water to knock down/kill the pollen, you may get few to no seeds
but it can be a lot of work, depends on the nature of the hermie you have