Implantation bleeding?

Me and my s/o have been trying to conceive for a few months. This month we’ve had unprotected sex every day but maybe two during fertile days. I’m not supposed to get my period for another 10 days, I just got off work and had a small light pink spot on my underwear when I went pee. I bled a little in the toilet, enough to make the toilet water light pink. My periods have been pretty regular, but I’m not sure if it’s too “heavy” to be implantation bleeding or if my period is coming early - which would suck because I really thought this was our month to conceive. Any thoughts? I’m just in need of some feedback from some fellow ladies TTC. 🖤 xo