Hi and thank you so much for this query.
I am sorry to hear you vomited your drugs shortly after consuming them. The best thing to do is to repeat just the second dose that you vomited. There is no need in taking the first dose over again. Also, it is safe to take these drugs even when you have GERD
At this time, you may consider adopting a systematic contraception
method. If it is something you may want to consider, then you can talk with your doctor to figure out what works best for you. This will prevent you from always having to take emergency pills after intercourse.
I wish you well and hope this answered your query fully.
If you have more questions, please feel free to contact us again for answers.
Dr. Ditah, MD