Im pretty much going through the same thing, when I bled last week after being two days late and having 7 faint pos I thought I had a chem/early miscarriage but my boobs are still so sore, headaches, sickness and tiredness off the charts.
I think blood tests are the only way to go for the both of us. I don't know about you but I feel like I'm going insane and I'm scared the doctor will think the same.
I've also started thinking well if I'm not pregnant then what the hell is wrong with me.
Good luck, hope you get some answers too.