discouraged and upset. +***UPDATE******

The Mrs
UPDATE
well 3 hours after this post I got my BFP. I wasn't gonna take a test till another week but thought what the hell just one. I almost passed out and couldn't keep it a secret from my husband when he called at that exact moment. We are both happy and blessed!!!!! 
Me and my husband are trying to have our first. It's only been 5 months and I know people say it's okay it takes a year to conceive but I'm finding it hard not to get upset. I look everywhere for signs to help me get pregnant and I've read all the suggestions and what not. But I get discouraged every month more and more. I try to not stress and let it roll cause I know stress makes it worse but I'm scared I won't be able to give my husband a child. I already have one from a previous marriage and he has two from a past girlfriend with one ovary. So  just confused on what could be wrong. I got pregnant like nothing with my son   
The chart says my period is due soon and sometimes I feel symptoms like I'm pregnant but I brush it off cause I don't want to get excited 
Just upset.