Petpet, my legs had tiny red bumps rashes during my pregnancy as well. My feet, heel, back of knee, thighs, all have. Saw a thread that some mummies have it too. So it's normal.. Some even have it as early as their 2nd trimester! Try calamine lotion cos it's suppose to sooth itches. I'm not sure whether it will work cos i didnt use but the nurse at the midwife clinic told me can use. If dont have, can use moisturizers or aloevera gel. Try not to scratch.. I kept scratching mine till skin tear, but didnt tear till v jialat. Now my legs got all the marks. Damn ugly.
somemore i am very fair, the marks all can see v clearly. My legs used to be almost flawless. Now.... Hais! Lol.