Pregancy fear. Value less than 2 iu/l!

Last sex 9th feb I was on ovral l from 3rd feb to 23rd feb Bleeding was from 27th feb to 4th march That month's periods was from 2nd feb to 6th feb Then next ovral l pack from 3rd march to 23rd march Bleeding from 28th march to 31st march Next ovral l pack from 28th march to 18th april Bleeding from 23rd April to 27th april Beta hcg tests on 1st 8th 15th 22nd 29th march and 11th april and 23rd april all negative Urine pregnancy tests also negative Usg also shows empty uterine cavity on 29th march and 13th april Were these bleeding my periods Any chance of pregnancy All tests negative No symptoms also Surely not pregnant right Last sex 9th feb I've had 3 bleeding in feb March and april In proper time Beta hcg value less than 2 iu/l