 [ Symptoms ] i just started to bleed a little bit im not sure if im pregnant or if its my period is it safe to use a tampon  i would be 3 weeks if i were pregnant im not sure if im pregnant or if it is my period but i put a tampon in just in case could this be harmful to the pregnancy if this is implantation spotting rather than my period i usually have severe cramps and frequent trips to the bathroom with bowel movements prior to my periods which i have not had at all this time around [ Disease ] hi the answer is not known so to give yourself a trouble free time just use back up condoms till your 7 days past restarting your pills but some women do not even bother to take a break but that as they say is another story so hope this helps you good luck