I can't believe I'm asking this?

question on here as I have answered hundred of these similar questions. Maybe I'm just aggravated and discouraged in my particular situation. LMP was Jan. 23. I run a 30 day cycle. So.... that means that AF is now 10 days late. Me and my husband had been ttc since August I believe. I have had 1 miscarriage for sure and one "suspected" miscarriage. Okay. So, I did the hpt (3 different brands because I definately expected a BFP) this am. (for first morning pee) Only I found all BFN. I am so confused by this. I am not known to have low hcg levels in the beginning as I have had 2 full term pregnancies. With both I got BFP a week before my period was even due. I don't have tender or sore because I have had a reduction and the feeling isn't all there. However, I have been extremely tired for no reason at all. I slept Friday night 9pm-8am. went back to sleep at about 1230pm on saturday and slept until 9pm saturday night. Woke up went back to sleep at 12 and woke up at 10am sunday. It just seems like to much sleep for me. I just know I'm pregnant, but I'm getting BFN. i don't want to go to the doctor just yet for a blood test. My question, I guess is, how many have had similar situations that really were pregnant?