Ladies can you help me

Carla • Hello :) 21 and my husband is 37, Finally got pregnant with baby number 1 :) Any help would be great :)
I was inseminated last Monday, and normally at this point in my cycle I was watery white CM , but I currently have thick chalk white discharge? Can any body help me ? 
I have been to the docs and I haven't got any infections so what is it ???