You already posted that and have been told multiple times that you’re not pregnant

you are fine. all you got to worry about is when you do become a lot more sexually active your body might just change a little bit .your period may be late when you have sex it changes from having no sex to a lot of sex things do change. S*** when I first met my partner I literally had to have him start my period for almost 6 months until it finally regulated itself again.