I got the shot on 2/22 i was having sex at the time that was on the shot i was supposed to get the sh*t again on 5/13 -5/31 i gotten my period for a long time I’ve been spotting even after that i feel a little movement in my stomach .what does it mean should i be scared i did have intercourses while i was off the shot but my partner said he was close to coming inside me 

Please help