What’s wrong with me?

So I finally lost my virginity and my period hasn’t come. I talked about it in another post around the beginning of the month and I was told to test. They both came out negative. And sometimes i get cramps and I think my period is going to come but it doesn’t. There’s still about 7 days left of the month and it’s just really weird that I haven’t gotten my period. Is something wrong with me? (Yes we used a condom)