please helppp

Abbie • A.thomas
So at the end of last month I was taking my pill irregularly, and then started a new pack (skipped my 7 day break) and took the pill for a day or two. I then missed 2/3 pills and tried to catch up the following days but failed. I carried on taking the pill for a few days normally but stopped on a Friday. It is now 9 days since i have taken my last pill. During this time I have had a bleed for 4/5 days, and the 3-5 day has been extremely light, however today I have brown bleeding/discharge that is very light. I am not bleeding during the night. Could it now be a sign of implantation bleeding? Me and my boyfriend have been having unprotected sex for a few weeks before and after this time now. What are the chances of me being pregnant and when do you reccomend taking a test? We really want to know if I am or not!