Is it possible..

I came on my period a day early than what was expected me and my man are trying to get pregnant , I was just wondering is it possible to get your period and be pregnant ? My boobs hurt way way more than they ever have before a period it was intense and I had cramps the first day. My periods on day 2 and its light like only when I use the bathroom now is when I see anything but it was more on the first day. Any ideas ?