The timing of getting pregnant is everything. You must ensure that the correct circumstances exist for the sperm and egg to unite. You can get hints about when your body is prepared to begin this procedure from your menstrual cycle.
Finding out which days of the week you are most fertile is the first step. Most women have a menstrual period of 28 days. This means that you have about 6 days every month when you can get pregnant.
Once you have your average time, subtract 18 days from the length of your shortest cycle. The first day that you are probably fertile is today. Next, subtract 11 days from the length of your longest cycle. This is the last day you are likely to be fertile. Having sex between those two dates will give you the best chance of getting pregnant.
Source: माहवारी के कितने दिन बाद बच्चा ठहरता है