I havnt started??

So guys I havnt started an I am four days late but I have been having cramps but also at the same time my boyfriend am I have been trying to get pregnant for a month now I know it's not a long time but I am really confused because all my friends that have had baby's keeping asking me if I am pregnant because it looks like I have a baby bump. I don't wanna take a test because I feel like it's to early An the cramps are confusing me please someone help figure out what to do??