NEED ANSWERS!!!! HELP!!!

Ok here goes...I had my period June 22, 2009...period normal lasted 6-7 days...messed up and cheated on my boyfriend June 28 one time...next day ,however, slept with my boyfriend (June 29, June 30, July 1, I think I dont know for sure July 2, July 4, July 5, July 6, July 7, July 8, July 9, and July 10).  All these dates are with my boyfriend...Going by LMP my due date is March 29th...when I had a early ultrasound at 5 weeks and 13 weeks dr said I was measuring right on target...when I finally manned up and asked him about conception he said I conceived July 10th and my due date was changed to April 2 so between March 29 and April 2 is when Im due... (they're going  by my menstrual due date since its a difference of 4 days)...should I be concerned about paternity or am I worrying too much??? Oh yea its a GIRL!!!

[AnnieBrooke]

The time difference between June 28 and July 10 is only 12 days, and ultrasounds can be off by that much (especially as the pregnancy progresses).  It's only fair to do a DNA test after the baby is born.

[Victoria01]

Annie is right. Anytime there is two weeks or less between sexual partners, a DNA test is the only way to know for sure who the father is.

[Sha89607]

But I dont understand if all my ultrasounds are pointing to April 2nd the 1st one couldnt be the father

[AnnieBrooke]

Ultrasounds are not that precise.  Some women are told things based on their ultrasounds, like that their baby is going to weigh 9 1/2 pounds and instead when it's born it weighs 7, that are just way off.  Ultrasounds are amazing, but the science is not good enough to guarantee that one is the father when the two candidates are that close together in time.  And really, that guarantee has to be ironclad, not iffy.  
You'll be asking someone to help pay for this child's costs for 18+ years and to be emotionally invested, and he deserves at least to be given the opportunity to decline this obligation if he is not, in fact, the father.  Even more important, your daughter deserves to know who her father is..

It sounds like you are resisting the idea (that a DNA test is needed) because you don't want to have to tell your boyfriend what happened.  It only takes you, the baby, and the other guy to run a DNA test to at least remove him from the list.  (And then of course, you would know it is your boyfriend's, because he's the only other choice.)