Me and my fiancée having sex on 25th oct and we are not sure that condom was broken or not but for safety she had took I-pill after 18hr and before sex she had take medicine for delaying periods and that medicine were taken for eight days from 14th oct to 22nd oct. She got periods on 1st nov bt her regular period would start from 12th or 13th. After that we had sex on 9th nov, on that day condom was broken and I ejaculated in veginal. But after the sex within 1 hour she took I-pill. And after two days she got in periods again and during that period bleeding was very low. And from 27th oct to till now she feels weakness on some days, during periods she feels vomiting, and as I observed her breast also growing. And today on 23rd nov she feels back pain and said that she had some pain in lower stomach too. And also said that she feels she will get another periods soon. What I have to do for knowing whether she is pregnant or not. And if she is pregnant then what should be done for avoiding pregnancy as we have planned to have child after 3 years.
Please give suggestion soon...
Please please please

"what should be done for avoiding pregnancy". Considering your condom issues you should have answered the question yourself. Continuous use of a plan B pill is not good for the body. Is she pregnant? Have to either test yourself or go to a family planning clinic. In the future, remember that a condom has the highest pregnancy failure rate. Consult an OB/GYN for a better solution.

Your options depend on where you live (country and/or state.)

First step is to determine if she is pregnant, suffering from side-effects of the I-Pill or something unrelated.

I suggest that she visit her doctor for a pregnancy test. If she is pregnant, she can discuss her options with her doctor. If she isn't, then she can discuss birth control options that might work better for her.

If you are are wanting to wait for three years to have a child, then your best options are to abstain from sex (stop tempting Nature) or invest in more than one method of birth control.

Keep in mind that no form of birth control is100% effective. Any time you have sex there is a chance of pregnancy occurring and emergency contraceptives are not designed for frequent use.