Hi, im 20 years old, me and my boyfriend of 6 years have been trying to conceive for the last 3 months, i also have a history of an ectopic pregnancy, i have been having some odd symptoms lately . For example i usually have my periods for 4 days, recently i have had them for 2 days with heavy bleeding. This past week I had my period for 2 days with heavy bleeding then I stopped for 2 days and me & my boyfriend had sex this morning then I started bleeding again. I also took a pregnancy test 4 days ago and it was a negative, should i wait another week or so and take another one ? Could I possibly be pregnant?