Afraid of miscarriage

Alicia
I don't know how far along I am, I thought I was 7 weeks, but ultrasound showed baby was measuring maybe 5 weeks. I'm afraid it stopped growing because the timing of ovulation and when hubby and had sex just don't add up for two weeks difference....anyway, but I am still having lots of symptoms. Fatigue, nausea, sore nipples, mild cramps, lots of CM, food aversions, constipation. 
Does this sound promising to any of you?