thanks for using health care magic.
Your situation is a little delicate to give a yes or no answer following available literature on the risks of ectopic pregnancy
. A past history of ectopic pregnancy greatly increases your chances of having another ectopic pregnancy.
Present literature on risk factors suggest that progesterone
only pills could be less effective in preventing pregnancy and the risk of ectopic pregnancy is increase following failure of a progesterone only pill or after morning pill.
However, the emergency contraception
is very effective in preventing pregnancy if taken within the normal time period of less than 72 hours after intercourse especially if taken within the first 12 hours.
So, given your medical and social situation at the moment, i think the scare is more in favour of a prevention by taking the emergency pill and carefully watching out with close follow up by a gyns/obst. Missing your period should immediately prompt consultation for a Pregnancy test and an ultrasound
You might consider discussing this with your gyns/obts.
Best regards and hope this helps you.