Baby gerak

Aiyah, don't worry too much lah, at 18 weeks, some mums take a bit longer to feel those flutters, especially if your placenta is at the front (anterior placenta, that kind of thing). A few of us tried lying down quietly after eating something sweet, and suddenly boleh rasa baby's little movements, so maybe give that a go first before you stress yourself out! But since this is your second baby and you're keen to make sure everything is okay, best to just mention it to your doctor at your next checkup or call them, they can do a quick scan and put your mind at ease, kan?