Am I pregnant?

[Lilysings]

So I miscarried at 6 weeks on February 3rd. It's been over 4 weeks, and so far no period. I am having a few of the same early pregnancy symptoms as before, but not all. Fatigue: I can sleep soooo much! But I'm also a night shift nurse so I'm trying not to psych myself out. I have had mild (not painful) cramping since two days after my husband and I first had intercourse after my mc. My urine smells strong. I have been having very vivid dreams. Some mild low back pain. I pee soooo often and am having some urgency (no pain or burning). A home pregnancy test that took yesterday was negative. Am I just being ridiculous and desperate? Is it too early for other pregnancy symptoms and a positive test?