it's normal to feel super hungry. after all you are providing for your child. you will need more nutrient and I have a green tea sometimes without issue
gantikan nasi dn roti dgn oats, spaghetti.. kekacang pulak sesuai utk kudapan.. kerap makan, tp dlm portion kecil boleh elak lapar
Green tea is alright. You need to eat adequately, so I would suggest waiting before going on any diet.