Possibly pregnant?!

Ok,question! I ovulated last week and had sex everyday during my fertile window. My period isn't due until the 19 or 20 according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a> but yesterday I noticed my boobs were a little tender and I had creamy white discharge,this morning when I woke up my boobs are EXTREMELY sore (any type of movement hurts like hell) and swollen and I'm having very very mild cramping here and there. My boobs never get sore this far ahead of my period (usually 2 or 3 days before IF they even get sore at all) could I be pregnant? Also very gasy the last 2 days...(embarrassing)