Congratulations to all you mama’s to be!!

I did Sneak Peak and its come back boy, which I’m happy but I’m scared it could be a false boy reading! I have two girls already and the only male who lives in the house is our dog. Could my dogs dna of gone in the sample lol? I did upstairs, washed my whole body and hair but my only concern is I dried my hand with a towel, but was a fresh one… Ahh do I believe boy or not? Any advice is appreciated. Thank you X

P.s- due 10th April, 3rd baby, two girls already. Also this pregnancy feels different to the others. Feel sick and vomiting from 5weeks pregnant .