Day 7 and no period

Monica • Soon to be mother of three. I`m ready to have more I`m energetic and outgoing , ready to meet moms and moms to be and connect
This is my 7 th day without my period and I'm starting to get the idea that I may be pregnant. I have been experiencing some mild cramps with no bleeding for about three days. The first two days I was feeling nauseous and I threw up on day two. My boobs are tender a little and I think they may gotten a little bigger. What should I do?