Sign of pregnancy

Patient: I had a physical relation on 17th June and from 22nd June I felt vomiting tendency sometimes and feel slight pain in abdomen and back side and slight cramp also. My periods date is on 8th July. We used 2 condoms and sperm also realised outside. Can this be a sign of pregnancy??Is there any way to check the pregnancy before my 1st periods.

Symptoms: vomiting tendency,pain in abdomen and slight cramping