Hi I had my contraceptive injection on the 9th of October and it was a week over due , I had sex a couple ov days after . Yesterday I stated feeling sick and burping constantly they was very smelly , tho snoring I ve stopped burping constantly and burp when I ve had a drink , am still feeling very sickly , ive no pain in my stomach just a sickly feeling . Could I be pregnant or is it indegestion ?