We Had Unprotected Sex On Ovulation Period And I Had

We had unprotected sex on ovulation period and I had ecp as well at that time ... I am on Ava 30 ed... But I missed it thrice dats y I had ecp.now I am on no. Hormonal pills but no periods yet... It's the 3rd day of missing period..took a pregnancy test in d morning and it was negative... Please help... I am too stressed