Light to no period on birth control pill (Femcon Fe)

I have been taking Femcon Fe for almost 3 years with no side effects. I stopped having intercourse with my then-boyfriend in April and had a normal period. Then I was somewhat inconsistent in my timing of the pills because I was not in a relationship. I missed one pill in Aug. (dropped it and couldn't find it), but otherwise never missed one, just wasn't careful about taking them at the same time. Over those months, my period became increasingly light, to the point that eventually I didn't even need a tampon, basically just had spotting for a day or two, if that, and in Nov., I only saw a slightly brown tint in clearish discharge once.

I started having intercourse again in Dec. (on my last placebo pill day of Nov to be exact) with the guy pulling out each time and have not had any sort of period in Dec. or Jan, (taking pills consistently). In Nov., I was fairly consistent with the pills, though maybe twice I forgot to take the pill at night and took it the next morning. I've not had any other pregnancy symptoms. Should I take a test or wait to see my Doctor in early Feb.?