Am I really pregnant?

Soniya

Hello ladies, today is 6 weeks and 2 days according to this app. My last period was 17th November. 35 days cycle, I got implantation spotting just for one hour on 19th December. On 25th December got positive result. But light pink line so I retest today and it was shocked. It was negative result. What is going. Two years for ttc. Am I really pregnant.??