 [ Symptoms ] i had 4stents implants and a filter 2 months ago now my period is 21 days later could i be pregnant  i had 4 stents implants and a filter 2 mths ago now i am 21 days later for my period could be pregnant  negative pt a week ago hmp [ Disease ] hi it could be that your just having a skippedmissed period but you could also go to your doctor for a test but sometimes that could also come back negative and still be pregnant its a real mystery why but it can happen are you having any other symptoms good luck