Tender breast and
nausea are also side effect of taking morning after pill but these side effects usually last only a few days after taking morning after pill.
But in your case, you have such symptoms from 28th June. Therefore, these are most likely
pregnancy symptoms.
Most pregnancy test will give you accurate results if you test at the time when your period is normally due, about 2 weeks after you ovulate(Egg release).
Abortive pill is popular name of combination of 2 medications(Mifepristone and
Misoprostol). This is good to use in first trimester of pregnancy and this is best to use in first 9 weeks of pregnancy. Abortion pills are very effective and these pills definitely work.
Most women have medication abortion safely but all medication procedures have few risks, so safety is the concern. Possible risks could be
allergic reaction,
incomplete abortion, infection or heavy bleeding, if any one of them occurs with you after taking abortive pill, you must seek medical attention immediately and consult physician especially gynecologist as these risks are very treatable with medicines as we have to be on safe side always,
I think this would help, If you have any further concern, do not hesitate to let us know.