i had sex before i got my nexplanon, he didnt cum but the condom broke.

I got on nexplanon like a week after that but the day before I got it by breats were slightly sore (like I was about to have my period) and then after they stopped hurting for a good 2 weeks then my period came (with the company of suppliments) but didnt stop for a whole 4 1/2 months.

so with it being so long theres no possible way I could be pregnant right?