pregnancy scare i need advice

hey y’all okay so i was suppose to start my period february 20 and its already march 5th. I’ve been trying not to panic and stress but ive been looking up the reasons why i could be late and it’s probably because i had unprotected sex with my boyfriend . we had sex 2 times before i was suppose to start and we had sex again after 3 days when i was suppose to end my period but it never came I’m currently on my 45 day cycle . but the only reason why i could be late is because on the last day on my last cycle i started working out ALOT it was January 23 and i usually never work out but that week i decided to just work out constantly (tryna get the hot girl body before summer😅) but i stopped again for like another week so i can take a break ig and then some days i work out here and there. so i didn’t really panic i just let it be because it said exercise can be the reason why u missed a period . but yesterday i started to spot and it was brown? and I’ve never spotted brown before so i panicked and i looked it up and it said brown spotting is “implantation bleeding” and so now I’m starting to get scared. that was light spotting tho it wasn’t alot but today , before i got to bed i started to bleed and it was red ?? so now I’m confused I’m not sure on what to do i told my boyfriend all this and i told him to get me a pregnancy test so now I’m just waiting. any advice/suggestions?