Stopped pill mid pack

A month ago myself and my SO went away and i forgot my bc pills. We had been talking about ttc for a while so decided to ditch the pills and see what happens. I was about half way through my pill pack. I have had no withdrawal bleed and still no AF since. I have had some symptoms like breast tenderness, nausea and cramps but have taken two tests and had a BFN both times. After being on the pill for 16 years i have no idea what my natural cycle would be like and whether i have messed it up coming off mid pack. 😔