PCOS -TTC- help!!!

Ok.. I have PCOS... I have an extremely irregular cycle which recently started to become more regular since i am doing a low carb diet and have lost 45lbs. I have been tracking my cycle and it should have come 2 days ago.. I knew this 1 because glow has helped me track.. And 2 because last week i was an emotional train wreck and wanted to eat everything in sight! I had a tinted pink discharge only one time a day for 3 days and only when i wiped. I had to look close to even notice the pink on the first day... Now its gone...no AF... And BFN... On 4th day H and i did have intercourse... But now nothing... And im like... Ehhhh.... Anyone wanna weigh in if they have had something similar happen? Usually, when i go pink its a sign of the flood gates opening and then im in hell for 5 days and bleeding enough to get through a tampon and pad in about 2 hours... So im confused.. Should i consult a GYN?? HELLLP!!!!