Pregnancy after tubal ligation

I'm new to the chit chat board so I will start by saying hello to everyone! I'm a mother of 2. I have a 3 year old and a 4 month old. Today I experienced some light spotting and I'm about 6 dpo. I got a tubal a month ago but not sure what to think about this? I hate the could I be pregnant questions but I'm kind of asking one right now, Lol. Would appreciate any input! ...also the spotting isn't from the tubal. I am
Healed and the spotting from that stopped about 4 days after