### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
I have a problem with my birth control. I took it for a month, and stopped because the days were off because i started it on the wrong day. I never started the next pack because i haven t gotten my period yet. I only had spotting during the month i took the pill never a full period. Should i be worried that im pregnant and take a test? I have been told that it takes a while for your period to come after birth control.

### output:

Hi, How are you doing ? Usually the hormonal control of the ovulation will appear by the second cycle only, so you will need to have additional contraception for the first month. After 7-10 days of the last pill, your periods should start. Hope you have been taking the pills punctually, as the irregular pills can cause the ovulation in between. Usually the regimen to be followed is 21 pills ---7 days no pills---start next packet of 21 pills from the 8th day, even if there are no periods. You don't need to wait for the next periods. Next periods will occur in between. Now if you have not had periods yet even after 7-10 days, have a urine pregnancy test & rule out pregnancy. When confirmed as negative - have the same contraceptive pill (21 pills packet) twice a day for 10 days (throw away the 21st pill) you will have the periods within 7-10 days. From the first day of that bleeding have the same 21 pills packet once a night for 21 days----7 days no pills---- start next packet from 8th day. Have an additional contraceptive in next month, no need of contraception in 2nd month onward. Hope I have clarified your queries, do write back if any queries all the best Chat Doctor. 