could I be?!

Jillian
So I got off of the implant nexplanon in August, and got my period in September. Within the past 2 weeks my fiancé and I have had sex multiple times. We always use condoms, but before we really get into it, he will go in and out a couple of times without a condom. So now I'm 4 days late, and I don't know if there's a possibility I may be pregnant? Or do you think I'm still irregular from getting the implant out? I've been moody, I've had to use the restroom a lot, and have been tired. Please help ladies!! Thank you!!