Weight gain at 24 weeks

Beth

So I’ve not gained any weight at all this pregnancy, is this normal? Or rather is it okay that I’ve not gained anything? I wasn’t a big girl to start with, I’ve got a small bump and even though my midwife hasn’t measured it yet, I’ve measured it at home using the proper technique and it’s below the lowest line on my chart, should I bring this up to my midwife on Monday when I see her? Or just leave her to it?