Hi, my age is 21 year. 9 months back I got married. And now for 5 months we are together and we are trying for baby. Can we have sex daily till the end of month to get pregnant? When it is near to my date I get stomach pain while sex, pain is sumiliar to how I get during my period. So *** can you help me?

I am a bit confused, are you trying to get pregnant? If you are, it is actually better to have sex every second day. Women will usually ovulate (release the egg from the ovary) approx 2 weeks from the last day of her last period.
Tracking your fertile days will help you know which days are best to try to conceive. Try a site like babygaga.com for info.