Advice needed please ladies 🙏🏾

Quendeja
Maybe it's just me but things has been pretty weird , last month my period came 2-3 days early than expected. My period lasted the normal 6-7 days but it's was more painful than usual but bare-able. My period came on dec 2-7. After my period went off maybe a week later I started vomitting and having diarrhea, I thought maybe it was a virus because it went away. My period came early again on dec 24-30. Wasn't too painful and was light , not heavy at all . I've been having constant headaches. And sneezing here and there . Could I be pregnant and not know it ? I've been after to test because of all the disappointment 😒. My SO and I have been trying for almost a year now . PLEASE COMMENT!