I've already posted this under 2 other categories, sorry! I'm really freaking out right now and just want all the advice I can get!

So, I started birth control (Levora) in November. I skipped periods on it, but since I was home in December/January I didn't skip, and went to the sugar pills. I had my period during the 1st week of January. Levora was great, didn't have any unusual bleeding or anything, but it made me break out so my doctor switched me to Trisprintec. I started the new BC the week of February 7th (a week after I was supposed to have my "February" period). The next week, Feb 14th, I started having cramps and brown discharge with pinkish/reddish blood. It was just brown with a tiny bit of blood, and it was only enough to ever filll up about 1/3 of a pantyliner. However, sometimes, there will be tiny "gushes" of blood, and I think I'm getting my period, so I'll put in a tampon. Take the tampon out, it's just more brown discharge. This has been going on for 2 weeks!! What does this mean? I've gotten the brown discharge before but it's never lasted this long.

I'm scheduled to get my period the week of the 28th. I'm so scared that I'll have a missed period. I've already talked to my doctor, and she said this was normal since my body is adjusting to hormones, but I've also looked at other forums and this could be a sign of pregnancy, like implantation bleeding? My boyfriend and I don't use condoms - just birth control. The last time we had sex was Feb 12th, but we have had sex pretty regularly before then.

Has this happened to anyone else? Please help! I've been stressing out about this for weeks!