Thanks for query.
You have early ectopic pregnancy
with low beta HCG
level so methotrxate is the treatment of choice.
Now your beta HCG level checked wkly for a month or 3 month to normal beta HCG level.
your beta HCG level getting down,if its value not decrease much than one another shot of methotrexate
It become normal in 1 to 3 month.