What is happening with my body ?

Ok so this app says I’m 4 days late and I don’t feel the symptoms I normally get before my period.

I did sort of/ not really have sex at the beginning of this month.

This may be too much information buuutttt.... he tried to put his dick in me and I kept telling him no because we didn’t have a condom AND I was on of one of my most fertile days in my cycle. It did go in a little bit barley. I mean barley. There was also oral sex involved. He did cum but in his hand.

I don’t know if I think I’m pregnant because the odds are I’m not but what the heck is going on.

Also I have been a thousand times more stressed out lately... can that delay my period?

Ladies please help a gal out and drop a message of what you think about the situation or what you think might be wrong with my period.