Late period..

penelope

The month of September 25-29 I had a period in October I had sex on the 4 two days after that I thought my cycle was coming back on bc I saw some brown and light red bleeding.. it lasted for 2 days and went away.. so I’m currently 7 days late today on my period . I took a test after the first missed period it was negative so could I tested too early ?? I’m having all the symptoms such as cramping in my lower abdominal, sleeping a lot , and peeing like crazyyyy.. the guy I slept with is having the same symptoms but excepts he’s throwing up I’m not I just have the nausea feeling .. what should I do ? Re test or ?