implantation bleeding, breakthrough or period???? confused

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I have been on the pill for 12years + and stopped taking it about 10 days ago 
My husband and I have been TTC and have been having sex every few days. I've been monitoring my CM but I am pretty casual about it all as it is so early in the process and I have no idea where my cycle is up to. 
Last few days I've been extremely tried, craving anything with carbs (very very random!), acne which I never usually gave and have had bloating/pressure in my stomach.
Today I had thin discharge (pinky/brown) which I have never seen before. Was a strange consistency and watery.  I feel bloated and have slight cramps 
Obviously I'm crossing fingers and toes we are blessed and it's positive (e.g. Implantation bleeding). However, could this be breakthrough or start of a period? I was terrified going off the pill as I have been taking it for so long!!!! 
Anyone else had a similar experience being on the pill for a long period of time and this happen?