thank you for using health care magic,
in early pregnancy
there can be little bleeding which also occur at the time of your period so you might get confuse with it..
home pregnancy test is not reliable.. in initial stage you can get false negative result.. go for more confirmatory test like beta hcg
level or ultrasound
if pregnancy gets confirm then abortion
can be done just by pills as you are in early stage..
next time practice safe sex.. you can use condom , pills or as you al ready have children IUD will be good option for you.. if you fail to use any birth control method then take i pill
within 24 hours of unprotected sex and its next dose after 12 hours..
hope this helps you..