Me and my partner split up on the 1st 0f January 2012, I then had one night stand on the 7th of January 2012, I am now 18 weeks an 4 days pregnant an not sure who the father is

There is no way to know till the child is born and you do a DNA test, The dates of sex is just one week apart, there is no way at all to estimate that close

me and my partner split up on the 1st 0f january 2012, i then had one night stand on the 7th of january 2012, i am now 18 weeks an 4 days pregnant an not sure who the father is
My due date is the 19th of September, does this help with who is the father, my midwife said probable conception would have been about 25th of dec

Yes mid to late December could have been the deed but not 100 percent accurate

If it was the second guy due date would be in oct because it takes awhile for sperm to live I heard sperm can live up to 7 days to travel so I would say first guy is the dad could you update me when you find out results