Could i be pregnant? birth control issues?

ok so idk when i ovulated but i had some physical signs of it a week before my husband and i had sex from june 19th-25th, i was on the pill for two weeks before that but missed one during that week but follwed the instructions to correct it.well then the next week i had some weird brownish pinkish discharge that was very light i thought i was getting my period because after my husbands visit( hes in college and im in the navy)i missed 2 more pills but didnt think much of it i started taking them again on the 26th but stopped on the 29th cause something doesnt feel right and normaly soon after i stop taking my pills when im due for a period i get it right away and now its been 3 days ive been off of them and nothing