Hi there! When it comes to birth control pills (am I assuming correctly that is what you mean by BC?) and the time it takes to get pregnant, everyone is VERY different. After 8 years without a break, your body is readjusting. Many women do not start their periods regularly for several months. If you do not start a regular period within 4-6 months, you should visit your gynecologist for a medical evaluation. Mother Nature doesn't look at a couple of months either way as a big deal. So, even if your family had a different experience, you're not far from them right now. Don't worry - really! Stress and worrying can help put off a period, which you don't want. Just relax, and let nature take its course.
Let me know how you are doing, and if you have any more questions!!