Need some answers

So I was suppose to have my period like acouple of days ago and HAVNT got it and still HAVNT got it. I have like white creaming cm everyday what could this mean. I did have sex but he didn’t you know in me. But I was thinking his Precum could probably do something . I have never seen this before I have never had white creamy discharge for the past couple days . I havmt been hungry lately food been making me wanna throw up been getting hot flashes and can never sleep at night been thirstier then normal and feel bloated back pains everyday all day. I do get headaches here and there and I have one today. And I’m feel so drained out. What do you think this could be I really hope this is a sign