Missed period

I have had irregular periods since i started but my periods have all been within 60 days from my last. I've been tracking my periods for the past year in hopes to get pregnant but still nothing. My last period was January 11th-22nd and it is not April 26th. I went to my doctor after 70 days and did a hormones and pregnancy test that came back negative and my hormones are fine. I'm now at 95 days and have an obgyn appointment on May 17th. I began spotting for 2 days on April 13th but it was just brown discharge. I just want help mentally preparing for the possibility of me being pregnant or if i should be worried at this point.