ADVICE!!!!i I AM NEW PLS HELP.

I took in a stray cat and she is pregnant i took her to a vet for a check up and they said she was about 6 weeks pregnant they did not want to scan her a she was very unsettled, however today she has clear stuff coming from her nipples when i was stocking her belly i saw it. My question is cats are pregnant for roughly 9 weeks so why has she got this stuff coming from her nipples if she is only 6 weeks, she is about 9 months old so i guess this would be her firs,t litter and last!!!! i am new to all this and this was very un expected. pls help.

maybe she is further on my friend just had the same thing,

I suppose it's possible she has mastitis, also.  If it begins to look "abnormal," another vet visit might be in order.
 

so is it not normal to her first milk at 7 weeks pregnant?????

She most likely is farther along, but she may have milk earlier if she recently had a litter.  Typically they get milk within a few days of labor.  You would know mastitis because her mammary glands would be large, hard, painful, and warm to touch