Itchiness during pregnancy is pretty common actually, especially as your skin stretches and hormones shift, so you're not alone in this. That said, since you're already worried about it and it's on your mind, might be good to mention it to your PD or gynaecologist at your next checkup just to rule out anything and get proper advice, especially since online searches can make you spiral a bit. In the meantime, try keeping your skin well moisturised and avoid very hot showers, as those can make itching worse. If it gets really uncomfortable or spreads, don't wait for your next appointment though, just call your clinic to check in.