Yup, when I was pregnant, had that too! And guess what...getting it again (pre-menopausal). Reaallly looking forward to it, too!
Yeah, but then just think: no more periods, no more need for birth control, kids all grown up, freedom, fun . . .
As my mom said, 'After bringing up kids, by the time you hit menopause, you'll be ready to welcome it w/open arms.' She enjoyed being a mom, but she really, really enjoys being her own woman these days.
Hell, my sister's 38 and already looking forward to it - of course, she has a pre-teen on her hands.