Is it only me? Change of body-odour with the start of menstruation

I can sense it from my body-odour when I'm about to menstruate. Often times, when it's about time I get my period, my body odour and the dress I wear suddenly starts to smell like menstruationblood, even though I'm not bleeding yet. But then after some hours I see the menstruation starting. Is it only with me or with others too?