Periods after a miscarriage

I lost my son Dennis. April 14th this year I was 16weeks pregnant. I had my first period 6 weeks after losing him and every 25 days after that until August 14th I've gone 70days without a period, alot of negative test & It's just hard. I'm scared to go to the doctors to be told it's just an effect of the miscarriage or that im pregnant both would be hard to hear. If it's effects of the miscarriage does that mean I won't ever get my rainbow baby or if I am pregnant does that mean something is wrong cause I can't get a postive home pregnancy test. There's nothing on the Internet and I would really like some thoughts from other women who have been at this place in their life.