Blocked tubes chemical pregnancy

bart

I was diagnosed with tubal blockage via laparascopy. Last month I had chemical pregnancy. So apparently the sperm find its way through the tube. But my question is, can chemical pregnancy happen in the tube? Does the sperm-egg cell can fall to the uterus? Do I have bigger risk of ectopic ? Or if the chemical didn’t happened, would the embryo stick to the tube or no? I was about to do ivf in the next few months.