If there wasn't enough anxiety-filled pressure when you're pregnant (big bump, little bump, too much weight, not enough) once you pop that baby out or have him airlifted as I did twice, first an emergency, second an elective (the latter a whole other set of pressures, of which I ignored wholeheartedly) you are quickly, at least with first baby anointed with parenting pressures.
My first pregnancy was pretty tough with daily vomiting continuing until I was 28 weeks. Not fun. At. All. It also meant living on walkers, dry biscuits and dairylea (whatever I could stomach) daily and sadly no exercise (even a ride in the car induced puking).