What to eat

Hey lovely ladies I'm a mum to a 2 almost 3 year old I feel like when I was pregnant with her I knew something was odd right away like literally 4 or 5 days later because I wasn't eating anything and I had no appetite and I might be pregnant again but it's during the 2 week wait that feels like forever what should I eat to ensure that implantation happens because this time I'm sooo hungry that even when I eat I'm hungry and I'm trying to stay away from sweets and soda and juice to make sure and also when implantation happened for you how did you know and what did you eat and drink during the 2 week wait