Sweetie, you do not sound pregnant. I know you are very late now but being really late means you are having a long cycle sometimes and has nothing to do with pregnancy. You mention your history of the HCG problem and that in your previous pregnancy you did not get positive tests. Do you have an ob/gyn? What about whomever you saw for your last pregnancy? It's time to establish with a regular ob/gyn if you don't have one (women should be seen annually anyway). A discussion with a regular doctor (not hospital staff like the ER) is important here. They will do a few things--- if your doctor that treated you obstentrically with your last pregnancy may do further evaluation to rule out pregnancy (ultrasound to see if there is a sac) and if not, can run blood work that will show other things such as your hormones in general and how your thyroid is functioning. Even if it was fine 2 to 3 months ago, it may not be fine now (talking about hormone levels and thyroid function). So, I would call your ob/gyn and set up a full examination to go over all of this. They HAVE to have some input here if you previously didn't register HCG enough to get a positive test. Our body CAN trick us and especially when we WANT to be pregnant. But you need help from a doctor that can dig deeper. No one here is going to be able to solve that for you. Let me know when you get that doctor's appointment set up!
Home pregnancy tests when used correctly and read in the right time frame are very accurate. So, you probably aren't pregnant. When was the last time you had unprotected sex? You can normally get an accurate result 2.5 weeks after that. Periods can just be late. Illness, stress, changes in routine, weight gain or loss, etc. can all cause a late period. And we will still have PMS at the regular time though (so for longer due to the late period). Isn't that awesome? (LOL< I know it's not). So, if you tested in the right time period, using the test correctly, I would not suspect pregnancy. good luck