Talk to Gynecologist on Ecp And Pregnancy

. Married . I have 27,28 days of cycle ,for a while i was con on contraceptives but then i left and its been almost 8,9months .. .. it these months i used used ecp only 3 times bcz my husband used condom. So we had sex around ovulation days and his condom broke .i used app for period prediction and oovulation days, as predicted by the the app my ovulation day was 19 dec and we had sex on 21dec i immediatly took ECP , after 4,5days of ecp my upper outer sides of breast hurts, i feel cramps on and off, its been 2 weeks now i still feel pain in upper outrr sides of breasts . I was expected to have periods today but yesterday and today i only had a very slight brown spotting (hard to notice) , periods haven't started today As my periods were expected today (sunday), i did BHCG test aday before on (friday )and it was <2.30. So what does it mean now ? Are these ecp side effects ? Or any other issue ? Before a day i mean on friday bhcg was <2.30 n on saturday very slight un no