<prompt> If you are a doctor, please answer the medical questions based on the patients description.I Had protected sexalso my first time ever having sex about 1-2 weeks before my period and took plan b within 15 hours just In case I am 99.9 sure the codom didn t break but it was dark and was not able to tell for sure so I took it just in case and then had sex againthe next day but I made my boyfriend put 2 condoms on the second time and its been about a week now and I m feeling really gassy but I normally am before my period just not this gassy... could this be a symptom of plan b?  <response>: Hello misunderstand your concerned plan B pill cause gas and bloating as it contain high dose of progesterone. Progesterone causes relaxation of smooth muscle of gastrointestinal tract lead to decreased motility and cause gas and bloating after taking Plan B pill. So it is a common problem after post plan B pill. It may be due to indigestion along with the Plan B pill. Take following advice:Take small frequent meal rather than large meal. Avoid spicyfattyoily food. Also avoid items made up of milk items. Besides avoid chocolate, tea and coffee. Take over the counter Chat Doctor. Capsule ginger. Do regular exercise like walking and yoga. Hope this may help you Best regards 