Had both tubes removed 3 months ago

There is a small chance that pregnancy could still occur, this could happen if your tubes were not completely taken out and they left a 'stump' which can eventually grow back but not as completely as before.  The chances of pregnancy going to full-term would be extremely rare as most cases these type of pregnancies end in miscarriage as conception and fertilization of the egg all take place in the tubes and without a tube this cannot happen.  So it can happen but low chances.  Hope this answers your question