Pretty upset

So my husband and i have been having a TON of sex, more than usual and its been nice. Well Saturday i am suppose to start my period. And since we had sex on my fertile days, i have been worrying about the possibility of being pregnant. So ive taken some dollar store tests early. Which are negative, so it really upsets me. I know my husband isn't ready for another baby. But im a woman, so of course im upset. I keep hoping that its just too early and that i wont start on Saturday. I had a strong feeling that i am pregnant because im usually pretty fertile. Am i being silly and irrational? We already have 3 beautiful kids. (2 are my husbands step kids, and 1 is his).

End rant.