Any advice?

Jj

Hey! My son is 2 turning three in February, my daughter turns one in October.

I have been off of birth control pills for two months due to insurance purposes. And my husband and I have agreed to one more baby, my period is due in three days, I have had heartburn for the past two days and my boobs feel kinda sore off and on so I went ahead and took a one dollar pregnancy test yesterday and it was negative. Should I test again the day of my missed period or what?