My son is almost 3 months old and I stopped bleeding the day before my 6 week check up. They put me…

My son is almost 3 months old and I stopped bleeding the day before my 6 week check up. They put me on the birth control patch and I used it for like 3 days and stopped because I didn’t like it and I started to bleed again which I assume was my period. Ever since then I haven’t had a period. I’m like 9 days late for the 2nd period.. we use the withdrawal method.. yes..

I know its not 100% effective.

could I be pregnant again??