TMI Implantation bleed?

Emma-rose

So on Friday I had a double frozen transfer. Then on Sunday evening (day 2 after transfer )and Monday ( day 3 after transfer) when I wiped I noticed small specs of darkish discharge. It didn't happen every time I went nor was there anything in my underwear. I'm just wondering well actually I am praying that this could be implantation bleeding. I've not had it since and it out happend a couple of times. Apologies I'm advance if TMI.