No period for April but spotting

Michaela • Mama to Charlotte Rose 7.30.18💛 👧🏼 Chloe Evelyn 👧🏻 Caroline June 👧🏼11.05.20
Well my period never came last month but I've had light spotting 4-5 days now . I haven't tested because I'm thinking since I'm spotting I'm not pregnant ... Could I be ? Should I call an ob to make sure it's not something else ?