Changed from Triphasil to Zyban and missed 1st period
I have been on Triphasil for more than 10 years and heard that is was a very strong pill to take. My skin and hair is quite dry and the PMS became worse. So I though of trying something different and everybody recommends Zyban. So used my last Triphasil pill and started with Zyban, the day that I was suppose to start my period. I am still in Zyban (1 week) and I have been late for 1 week. Is this normal to be late or skip a period when you change to a different contraception pill or is something else wrong? Do I need to take a pregnancy test?