We have been TCC for 4 months now, my last 2 AFs (Mar & early April) have only lasted 2/3 days when usually they last 5/7 days. Over the last few days I've felt "different" (pressure, lower back ache, nausea & sore boobs) last night I started with really dull period like pains but AF isn't due for another 2 weeks (glow says peak fertile day was yesterday). I've woke up this morning with the same pains and feeling really sick, I can't even touch my boobs they're so sore. Is it possible I could have got pregnant last month even though I had what I though was AF?