at the beginning of my pregnancy, my doctor kept asking me if i was craving things i couldnt eat, like dirt or laundry detergent or anything like that. i told him no and thought that was weird but he said some pregnant women crave that kind of stuff when there body is lacking certain things. well i am 31 weeks and even though i havent craved eating something that i cant eat, i crave the smell of gasoline. everytime i go to get gas, i just want to stand there and breathe in really deep. now i obviously dont do this, i actually made my husband start taking my car and filling it up for me so i dont feel tempted. this is soo weird, i have never felt like this before. this is the only weird thing that i crave but what kind of deficiency could i have for me to crave this? i have also started craving ice within the last 2 or 3 weeks. i have heard that could mean you have an iron deficiency.