It usually takes a a couple of months for normal cycles to resume after stopping the pill as there is sudden withdrawal of hormone. Meanwhile, you may experience the type of breakthrough as you have now. If you suspect pregnancy
, you can get a blood test
and go for a trans-vaginal sonogram. I would suggest you to see a gynecologist for a complete evaluation of your hormonal
status, local examination, regularization of cycles and treatment for conception. You need to get into regular ovulatory cycles for natural conception. Try to maintain a healthy weight, eat healthy and avoid stress
. Good luck.