Need some opinions

Hi ladies, so my partner and i are very sexually active when we see each other (currently having to do long distance due to work) and i visited his place from nov. 25-28, he did finish inside of me. He is currently down visiting me and originally i thought my period was supposed to come dec. 2-7, but it has yet to come, my boobs are getting to be very sensitive and tender, slight cramping here and there as well. I do have a paragard, ive had it since feb of 2019.

Is there a possibility i could be pregnant, i have not taken a test yet.

Thanks!