My boyfriend and i had rough sex i woke up this morning i had pain on the top of my chest when has slight pain and hurts when i press on it could it be muscle pain?

Prob.costochondritis: You likely strained or bruised the joints between your breastbone (sternum) and ribs. This can be annoying but is not serious. You can try some ibuprofen if it hurts a lot and can also take the homeopathic remedy Arnica 12c or 12x and/or apply a topical Arnica ointment. If this is not a lot better in a few days then see a doctor. And be a bit more careful next time...