Looking for Hope.

Just left the doctor after my first appointment since getting a positive home test on Saturdat. She seemed concerned how light my urine pregnancy test was at my appointment. Sent me for hcg bloodwork and will let me know tonight. I miscarried in May and I feel my world crumbling all over again. Trying for baby #1. Why can't I keep a baby? I'm only 4w4d along. Praying to God that hcg is high enough. My husbands constant "it'll be ok. We will get through it" only makes it worse. I'm doing all I can to not fall apart while I wait to hear about my hcg.