Chance of pregnancy???

Hi, been wanting to get pregnant for a while had sex on 24th and 25th of March my Ovulation was on the 29th-2nd and on the 14th-15th of this month I had like white/clear cm with specks of blood in it ??

I havent tested as of yet as my periods not due till the 21st.

When should I test ???

Could there be a chance of pregnancy??

Thank you