DNA stressing....

I never thought that I would be confused about who my child's father is. I feel like one of them girls off of Maury except the messing around with numerous guys. My child's dad is either my ex or this guy I messed with one time who lives in another city in another state. I bought a DNA test from the store and I'm going to have my ex take it. I will be happy when the wondering is over. I literally can't even look at my daughter and say she looks like him or him. My daughter is almost one years old so it will be nice to finally know which one is the dad. I'm honestly hoping she belongs to my ex only because it would suck if she belong to the other guy when I barely know him. I have known him for almost two years and as long as I have known him we have only really talked through text. We have never been on a date or spent any significant amount of time with each other so it would suck to have a kid by a guy you barely know. At least with my ex he'll be here for her and it would be nice to know that both of my kids come from the same parents. According to the Babycenter calendar app I have on my phone, its telling me that my ex is the one. I'm not sure how ovulation works but I thought women ovulated 2 weeks after the first day of their period. I know on the day after my 2 weeks on the calendar it said that my period started 12-16 days ago and I should be ovulating now or soon and on the calendar it said on my birthday that I should know by then that I was pregnant and I found out two days before so if I have to guess I would say she's my ex's but I still have a what if in my head like there could be a 50-50 chance it could go either way. I pray things turn out the way I want it to I will be disappointed if it doesn't but I'll be happy to finally know the verdict.