I and my bf did mutual masturbation on 27th march, he fingered me with his right hand while I did not touch my genitals but we fear his right hand might have touched his semen in some way (we do not remember, I got my next period on 17th april second one again on 17th may and third in previous month on 21st june but I missed my periods of july month and its 1st august today and I have not got my periods. I feel bit of pain in my shoulder and in between my breasts (not on them). What could be possible reason for delay of my period? Can I in any way be pregnant even if I already got 3 periods (It was not implantation bleeding and till I know implantation bleeding occurs just once). What can be the issue? Please answer asap. I can not directly contact a gynaecologist and so I am dependent on your answer for further action. I fear I might be pregnant though technically its highly impossible since I already got my 3 periods. Please answer asap. Thank you.