Could Biweekly Menstruation Along With Sore Breasts Be Due To Pregnancy?

Hi in the past few months my monthly cycle has been twice a month then last week I decided to take a home pregnancy test and it came back with one bright line and one faint since then I have taken several all with the same results also in the last week my breasts have become very tender and swollen I think I may be pregnant but with the faint line I think I may be very early stages can you please advise me on this