Talk to General Physician on Spotting While Using Contraceptive Pills

Actually i was taking yaz as contraceptive tablets since last two months,On 2nd of ramdan it was my due date,But instead of bleeding it was only spotting..i thought it maybe because of yaz,For continuous 5 days there was spotting..i considered it normal bcz of tablets,Than again I'm fasting since 3 today asr time that spotting started again,I've started my new blister of yaz since the first day of periods,Now I'm i go for pregnancy test or what to do