Week late, negative test

My husband and I have been TTC for so long.. and this month, I thought this was it! My periods are usually regular, but this month I missed it completely. I am a week late, I took a test this morning, and it was negative. I’ve felt nauseous here and there, few headaches, some cravings but none out of the ordinary.. Or was it because I drank ensure for about 2-3 weeks, not thinking (or knowing) it aids in gaining weight 🤦🏻‍♀️🤦🏻‍♀️🤦🏻‍♀️ nonetheless, did I take it too soon? Should I have waited?