Am i ovualting or early prenancy symptoms

[Taytay21717]

so im suppose to get my period in 5 days. I took a cheap test this morning and it was negative (I may have put too much in the sample) but after a while a curved second line appeared.
the only reason I took a test so soon is because I never usually PMS . my period comes its spotty to heavy for 3-4 days then its done. only time ive experienced cramps was during my heaviest period days
im worrying because I had the signs of implantation bleeding (small amount of pinkish and brownish cm) for just a day last week. these last couple days I've been feeling sharp tingles on my side and lower abdomen sometimes near my cervix.  bleeding 2/7/19 (also got a negative test on this day)
I really thinking its impossible that im pregnant because I took a plan b in January .however, my partner and I have had unprotected a few times since then.
but to my understanding plan b only delays your ovulation so I should have at least gotten my February period. but nothing. last periods 1/19/19 took planB 1/28/19 (Weren't really trying to have a baby)
I also thought maybe ovulation symptoms but my cm is clear/whitish watery. a couple time I thought my AF came full throttle but just cm
but again I took a test and it was negative at first. until I was gonna throw it away and saw a dark pink curved line
I guessing an evaporations line or bad test ?  could this all just be my period ????