Susie, in this case you won't know until the baby is born and you can do a DNA test. Ovulation trackers on your phone aren't any better than a paper calendar - they only do the math calculations and not the hormone calculations - and since ovulation times can vary, this is a toss-up.
When the baby comes you can do the DNA test and decide who to get child support from.
In your shoes, I would get an ultrasound as soon as you can, and ask for an estimated due date.
thank you I got one today actually and they said my due date is November 7 so im 8 weeks and 4 days so it adds up to be the first guys.
Here's from the calculator. Given that sperm can live several days in your system, as you say it sounds likely that guy #1 is the dad and guy #2 is out of the picture.
First day of last menstrual period: January 31, 2013
Probable date of ovulation: February 14, 2013
Possible dates of conception: February 10 to February 18, 2013
Due date: November 7, 2013 (40 weeks)
It would be smart to get a DNA test after the baby is born, just to be absolutely sure.
wish I didn't have to wait a whole 7 more months to know for sure but I deff need a dna test