I'm 25 weeks pregnant, have noticed that in the last day or so my pee is a slight pinkish colour? I had gastro last week and since I have then increased the water I drink but two or three times in the last day I have noticed there is definitlely a pink colour...my last urine test was 4 weeks ago through my OB and everything was fine. Is this just normal? I don't remember having pink pee during my last pregnancy!