Nervous

I am 6dpo I believe and I had unprotected sex like 3-4 days before . I did take a plan b because I am not currently trying . My ex broke my heart about 5 months ago and I am casually dating a guy were exclusive but he knows it ain't serious as i am just now getting over him & tbh he is not reliable and i want a better baby dad. he has 5 kids under 6 years old with 4 baby moms so he is very feritle . anyway 6dpo and i have egg white cervical mucus mixed with blood . prior to this i had large amount creamy cm looked healthy. i just never had enough before to show in my panties. & even-though i took plan b i felt my usual symptoms of ovulation only 3 days after insemination didn't take ovulation test til day 4 after and it showed 2 lines buy one was a liyyle lighter and kept getting lighter with future test. E/o month I get cramps on one side when I ovulate that , cm and position and softness/firmness let me know I actually ovulated 3 days before glow thought I would anyways that only happens once a month and now I’m get one sided light cramps again . Is that from implantation? I actually believe I am 8dpo just saying 6 incase I am wrong . Can I test ?