Am I pregnant or is it PMS?

Sarah

I’m currently 12 DPO (1/8). My fiancé and I did it on peak day (12/27) and the 3 days after. I’m on Norethindrone, and I skipped pills (2 in a row, (12/27-12/28). I took 2 on 12/29, but I haven’t been consistent. So far, I’ve only taken the pills for 4 days in a row. So far, all of the tests I’ve taken have been negative, there hasn’t been any spotting. My boobs have been really tender, I’ve been getting mild cramps on and off, nausea, and mood swings. I’ve been getting this weird fluttery/bubbly feeling in my lower stomach. What the heck is going on and when should I test again?