In case of both tubes being blocked, the only possible way for conception is through IVF. You should go ahead with IVF. Only thing you have to do is to find cause of high BP
& loss of baby in last pregnancy
so that same thing should not recur. You can ask your doctor for detailed investigations, but at least you can do LAC, anti beta2 glycoprotein antibodies
& anticardiolipin antibodies. If any of these is positive, the tragedy can be prevented by giving you some medicines that you doctor will prescribe you.
wish you good health.