My BF of 3yrs and I want a baby

My boyfriend and I will have 3years in may, last year in February we decided for us to try and get pregnant. We’ve been having sex during my ovulating days he always cums inside we’ve even tried different positions, I’ve even started taking prenatal vitamins, he’s stopped smoking I’ve even been loosing little weight eating healthier I’ve taken a pregnancy test atleast 4 days before I’m due to start my period (always Negative) December 20th was the last day of my period, I’m usually 28days even or atleast 1 day late but I’m 6days late on my period I spotted 2 days before I had to start my period 1st day was medium and the next was very little and I’ve been cramping here and there.. I’m just scared that it’ll come out negative but I’ve never been more than a week late and I swear I’ve been soo moody lately everything my bf does or says gets me upset and then I’m like nothing ever happened