Early Pregnancy Symptoms & Concerns: What Could It Be?

Question
I am 25, 1 child, April 10.  I didn't have a normal cycle.  I usually have heavy periods that last 5 to 7 days.  I had a period that was lighter than normal and it only lasted 2 days.  My breasts were sore for 3 weeks before my cycle and they are still sore but not as bad.  Of september of last year I had the same issue and it resulted in a miscarriage.  I don't have insurance to see a doctor.  I have taken pregnancy tests but they say negative.  With my first child, it took me 6 weeks until the pregnancy showed positive.  I have had several miscarriages since then the birth of my first child and couldn't afford medical attention.  I was wondering if I could be pregnant, or is there a test that is very accurate and reads the hormone that is released sooner than most.  Do you think that since I can't afford medical attention after I thought I had miscarraged that it could have created a problem?  2 of the miscarriages I would have missed a cycle and several weeks later I was passing clumps of blood and severe pain in lower back for several days.  I would release most of the clots immediately and would still release a small amount over the next few days. The last miscarriage I think I had I had the same issues that I am having now.  What would you advise me to do if medical attention is not an option?

Answer
The besxt time to take a urine pregnancy test is seven days after you miss your period. If you had a period on April 10 (even if it appeared light) the best time to take a pregnancy test is if you do not get your period by May 14.  A blood test for pregnancy may show a positive result  by 10 days after conception. I do not know what else you can do at  this time.