chances of pregnancy
are low if you were indeed taking oral contraceptives already for a few months, and if eyaculation didn't take place. Remember no contraceptive is a 100% effective, but oral contraceptives are about 98-99% effective if taken correctly. Plus you had negative pregnancy tests already, your chances of being pregnant are very very slim. For acid reflux
you can take Ranitidine
(zantac) 150mg by mouth at bedtime, or Prilosec
OTC once a day with an empty stomach. Avoid alcohol, chocolate, mints, smoking. Eat dinner 4 hours before going to bed at night. Lose weight.