Miss

Patient: My periods are between 28-32days and last 5-6dayd in length. I was with my previous partner and had sex but he never came inside of me, my nxt period was due 16th novemeber but came 19th november and only had lasted for four days, the days leading to this period i had done a number of pregnancy tests and all were negative. I started a new relationship and had unprotected sex with my new partner between 26-20th november, my next period was due on the 17th dec and didnt come on the 22nd december i took a clear blue pregnancy test it came out positive 2-3 weeks, my scan due date is the 26th august 2014 so is my current partner the babys father or my previous im really confused.?

Doctor: