Since you are regular with your pill your chances of conception are very less. Though you missed a dose you did make it up and this should be enough protection. If you have had a negative pregnancy
test, you may have to go for another one in 3-5 days, but, in view of your past history, it would be advisable to get a serum beta-hCG
measurement. Your symptoms are not specific to pregnancy, they can be seen around menstruation
as well. The cause of your abortion
should be observed as this can influence your future conceptions. Please see your consultant for a proper evaluation. Good luck.