Cramps & Sudden Re-lactation?

Natalie • a midwest mama
To start off, I had my first child 17.5 months ago. He was breastfed for the first 5 months- meaning I stopped breastfeeding him over 1 year ago now. Reason being, my milk was drying up very quickly.
My last period ended on 1/9/16 and glow tells me I ovulated somewhere in between 1/13-1/19.
6 days ago, 1/17/16, I began cramping and getting an occasional sensation of a milk let-down and it has continued on until this morning. 1/18/16 I was hit with a 24hr stomach bug. This was also the day that I noticed small amounts of "fluid" leaking from both breasts. Yesterday, they began leaking enough for me to tell that it was breastmilk! 
Since the cramps overlapped with my stomach bug, I can't be sure that they are related and I am not familiar with the periods of time in becoming pregnant, as my first one was a surprise. I'm getting mixed answers- I could be pregnant, or it's a hormonal "hiccup".  If anyone has any ideas as to what they think could be going on, I'd love to have you shed a little light!
 
Thanks in advance!