14 days late - negative pregnancy test. HELP

My husband and I have been TTC for over a year now. so I am 14 days late for AF (day 45 of my cycle) on day 35 of my cycle, when I peed there were two tiny bright red dots on the toilet paper which I thought was the start of my period but I’ve had nothing since then. I’ve taken so many pregnancy test and they all keep coming back negative. I went to the doctor yesterday to get a blood test and even that came back negative but I still feel I could be pregnant. My boobs are killing me, I’ve been emotional and moody, tired, mild cramping a few days ago, vomited a few times, bloated and some food I usually like are tasting funny. Please, I’m after any advise you have for me!