All ectopic pregnancies must be dealt with. The Catholic Church has no objection to removing ectopic pregnancies, as it is felt that one is treating the mother for a condition that can be lethal. It does not consider it an abortion. If a woman has had one ectopic, she isn't automatically going to have another, even though the condition that provoked the first ectopic is still there. A repeat ectopic on the same tube warrants removal of that tube, though.
Common sense prevails.
Mood swings, also hormonal. Queasiness and nausea, due, many theorize to the rise in the pregnancy hormone hCG, which is resembles at a microscopic level thyroid hormone, the elevation of which can cause nausea. True, many are blessed with no nausea whatsoever, but many suffer greatly, even to a point wherein they need to be hospitalized overnight to be rehydrated with IV solutions. When nausea is this bad, we refer to it as hyperemesis . Nausea causes dehydration, dehydration worsens the nausea, and further nausea causes further dehydration.