I’m only 16 & it broke my heart

I’ve been going through a lot lately just with trying to get my life together fully at 16. I’m finally at a great spot in life w my boyfriend of 1 1/2 years (he’s a CNA & soon to be 18) and me graduating early in 2 months and getting my new job at a day care. I’ve always wanted a baby but I could wait but recently I didnt feel any cum after we had sex I felt a few symptoms like nausea, fatigue, constipation, and I’m very emotional. I almost set myself that I could be pregnant so I took a clear blue digital test which came out negative. It broke my heart because I was honestly very excited but I hear they arent as accurate as the pink dye ones. (Also my period was supposed to come today but didn’t and it’s usually early) does anyone have any advice?