Need Advice

Hi. I have been on Birth control. For 2 years and on September,8 I Decided To get off of it me and my husband Want to have a baby now. I was on my 3 row Of my pack when I stoped we had sex till September, 13 and that same day my Period came down it lasted until September, 17. We tried again had sex September, 17-28 but on September, 24 I had some brown and pink Spotting and brown mucus With very mild cramps it lasted For 4 days. It was so light I used a panty Liner and we still had sex during the spotting. Twice a day. I notice. During the spotting My boobs felt a bit sore and now after the spotting Went away My boobs are much more sore and fuller and I can't stand the smell of eggs and I usually Love eggs. What do you think could it be implantation. Bleeding could I be pregnant Cause when you get off of birth. Control. You don't know when you ovulate. And I had my Period on the 13 of September. And finishes on 17 and my next one was supposed. To be on October 11 I never had tiny spotting. Like this before. I was pregnate. Last year while on the pill but miscarried