The urge of not knowing.....

I wanna know so bad if i'm pregnant we took a test it said no but I can't ignore the sick feeling in my stomach the tirednes,  peeing every five minutesand the lack of a normal period.... I want a definate answer so bad, me and my husband have decided that we would like to try for a child. He has a child from a previous umm we will say relationship he's 7 now and a good kid but I want a girl and a child of OUR own you know. As he likes to say we know he's fertile but I think it's going to be a good idea to go get checked if i'm not pregnant yet. I wanna a child but I don't want ten million people looking at my stuff all the time either lol the things we do for children..... hopin and prayin