What Causes Long And Heavy Periods While Taking Medicines For Ear Infection?

Hi there, Just a little concerned as i came on my periods 2 weeks early and have now been bleeding for 3 weeks now and quite heavily too.

I gave birth to my 2nd child 5 months ago and since this my periods have been irregular (usually quite short and quite light) unlike the one i am experiencing now.

I am 21 and have recently had an ear infection and was prescribed medication for this, The Medication i was Taking was Cetirizine Dihydrochloride 10mg Tablets once a day, Amoxicillin Capsules 500mg 3 times daily and i was also using Otex Ear Drops twice daily. I am unable to see my doctor as i go on holiday for 15 days on Wednesday and the doctor is unable to fit me in before then, which is dissapointing as i will not feel comfortable swimming etc.

Kind Regards Emily