cycle length ok? 🤔

Been off BC since October 2016 and end of month 3 TTC #2 🤗 would this cycle look ok or days between look a bit short? Most women I have seen are between 29-35 days? Since coming off birth control my periods are very heavy the first 2 days and sore on the first day, would this be normal? It will nearly be 10 years since conceiving my daughter so can't remember that far back 😂