What Color Is Implantation Spotting?

I am going trough the same spotting brown just a few dast after my period is about to start. I have been trying to get pregnant by my fiance who is in a wheel chair. I have also been getting back pain and mim cramps every now and then. i took a few pregnancy tests they all came back negative but if i look at the calander it will be eight weeks since we had intercourse. How much longer should i wait?

So me and my boyfriend were messing around about 2 months ago. He went in once and then i couldn't do it because i was scared. Two weeks later i started my period on time everything was normal except it ended 2 days early. During that week i went to the doctor and while i was there they took a pregnancy test that came out negative. Now this month is weird. Okay so the day before thanksgiving i had a colonoscopy and an endoscopy done. I did all of the prep solution and everything. Two days after my period came on as expected. But it's really weird this month. So it started first thing in the morning, like all of my periods usually do, and it was heavy red blood that lasted until saturday early afternoon. then it stopped all together, but then around 4 that afternoon i had dark brownish is blackish blood just enough to fill a pad. and then it stopped again until sunday around 4. It's been doing that since then and it's wednesday now everytime around 4- 4:30 ish. Am i having a weird period because I am pregnant, did the prep solution or anestesia have an effect on my hormones and that's causing a weird period or is it just stress about the procedure and the results. Do i have a chance of pregnancy?

i am going thu the same thing i brought a ovulation kit it said i was on peak on 3-28- 14 and then i stared to bleed on 3-31-14 worry why its not to start my period

16 days after onset of menstrual period spotting that lasted two days; should be ovulating around that time. Is this a sign of pregnancy?

I just got my period yesterday, and it was a pinkish color. When I woke up today it was a normal red heavy period. I never got a pink color before! What does this mean?!