Talk to Gynecologist on Pregnancy During Breastfeeding

I am 7 month pp. My baby was exclusively on bf but started taking semi solid but primarily source is still bf. I havent got my period back uptill now. Around 21 days back we had ic but doubt that condom leaks. So i took ecp within 24 hrs.. After 7 days i have period like cramps and had some spotting for 3 days. Uptilk now i havent got my periods back. Can you tell me what are the chances of pregnancy and should i go for pregnancy test since delivery we only had one time ic