Is it possible?

Rosemary

So I had a Tubal Ligation done a little over 3 years ago when I was 25. Well back in April I filed for divorce from my ex husband. Well my now bf and I had sex and about 10 days after I had spotting for a few days (had been off my period for 12 day) spotting between periods never ever happens to me. Well I looked it up and all that came back was implantation bleeding.. well a couple weeks after that I had another period.. I wiped one time and there was something on the toilet paper that looked a lot like what happened when I miscarried 6 years ago. Well I took a pic and sent to my sister in law who has gone through a few miscarriages and she said she had it as well when she miscarried.. so I’m wondering if it is at all possible for my tubes to have come untied... I want to have the operation reversed but it costs so much!