Period or implantation bleeding?? Help! Opinions needed!

Kay • Dog mom 🐶 holistic healer 🌻 Vegetarian 🌱🥑 Owner of Body & Spirit Holistics 🥰
Last period was Oct 10. I'm now 9 days late and for past week I've been spotting brown blood now it's bright red/pink. No pregnancy symptoms but I think I maybe pregnant, my SO and I do not use any protection but recently he's admitted to wanting a child.. No pregnancy symptoms but should I go ahead test?? It so what are the best pregnancy test to buy?