Midnight snacking 😭😭

I just found out I’m pregnant. I’ve had back pains and aches and a sharp stabbing cramp like pain for a few seconds tonight. Similar to my 9 dpo cramps that told me I was implanting... anyhow i woke up to use the toilet at 3am ... it’s now 530am and I’ve downed a half a glass of milk and two biscuits 🍪 any tips for midnight snacking x I want to watch my weight whilst pregnant so I don’t want anything unhealthy! I’m currently 11DPO.