should i be worried

Tiara

ok ladies so im a little worried my period was almost 2 weeks late this month. with that being said i just got it 2 days ago and its already gone. i had my mirena removed in june, me and my other half have been trying since then. i have a history of periods during both my pregnancies so i dont really count on that method especially with my oldest (now 9) i had my period on time for 7months it gets better they couldnt discover my pregnancy til i was almost 6 months pregnant with him. lol not a symptom in the world. now with my youngest (now 5) i had placenta previa and let me tell you i would never wish that on anyone. i bled nonstop my entire pregnancy and he ended up being a premee born at 7 months idk if im just overthinking all of this or if i should just see a doctor just to be on the safe side