Full on anxiety after 2 back-to-back miscarriages

My husband and I got pregnant last July 17, miscarried late August, husband's dad passed early September, got pregnant again late September, then miscarried again December 1. I didn't go back on BC because I was on it for 15 years. I told my husband that I didn't want to actively try again for a while because I emotionally couldn't handle it. My second MC was so traumatizing that I had to go back on my antidepressants and antianxiety medication and even started therapy. I refused to get pregnant again because I wanted to avoid another MC with all of my might.
After seeing the therapist, I decided to schedule a preconception appointment just to see what condition my body is in. I'll be 31 in December and my family had a rough history of cancer, endometriosis and cysts. My grandma had to have a hysterectomy at 32 for goodness sakes. My insurance denied coverage because they considered it a "infertility consult." What kind of crap is that?!  Originally, my husband told me just to go ahead and keep the appointment and then called me the next morning to cancel it because it was too much money. That was this past Monday. 
Anyway, my issue is this:
My cycles have been extremely irregular since the MCs.   It's turned into 4-5 weeks in between periods. My last cycle ended June 4 and my hubby and I had intercourse without any BC and there was no pulling out this time.  Then we went another 2 weeks without and then had intercourse again June 18.  Glow told me that I started ovulating yesterday (the 23rd) but I had a little dark brown discharge on the 22nd. I've been super nauseated today and I've had a huge headache. I also have been beyond tired and all I want to do is sleep even when I take my adderall and drink my Diet Coke. I'm worried that I'm pregnant again. Am I just paranoid?