bbt spike

Megan

Im very new to charting so I could use some advice. oddly my temp usually runs 96.7 well 3 dpo it spiked to 98.9 and i had sex everyday of my fertile window. is it possible thats due to implantation? i have lots of symptoms like tenderboobs, frquent urination, been emotional on the 30th the day it spiked. what do y'all think?