Hie Doc,lwas On Pethogen For 7years,was Suppose To Take My

Hie doc,lwas on pethogen for 7years,was suppose to take my shot on 15th of march this year and l didint cz l want a baby,so my question nw is lve been experincing period pain since then but no period at all and my breast are sore,how must l wait to get my period back and how long might it take to concieve cz my second baby it only took me 2 month to get normal periods,,thank you doc