Implantation Bleeding

Hello po, TTC for almost 1 year ng partner ko. 31 days late na po ako sa period may ilang symptoms pero my partner has been diagnosed with azoospermia (hindi pa kami ngpapa-2nd opinion) but taking meds naman siya. Today, I am planning to take PT but nkita na may as in konting blood stains pagpunas ko.. ito na po ba yung implantation bleeding if ever? Nakaka-overthink as first time mom if ever po. Hope someone can help. Thank you.