It sounds exactly like what I had last month... and I was sure it was implantation as I have never had spotting before in my life. I mentioned it to my gynae last Thursday when I went and he did a urine test and said "it was probably just a very light period" so I have been carrying on as though I am not pregnant, although the past couple of days, I have had a few other symptoms... so I am still a little unsure. I would suggest just test again in a few days and take care with what you drink / eat / smoke just in case. I really hope it is implantation for you!!
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