Conversation: The conversation between human and AI assistant.
[|Human|] Hi, I had a short period this month of about a day or two which is very abnormal for me being that it usually last about 5 days. About a week after that I began to spot a little which was pinkish and extremely light, now it is sort of brownish and its still light but heavy enough to have to guard it. What could be the issue? I am on birth control (IUD), but for some reason I think I may be pregnant.
[|AI|]  There is a small chance you could be pregnant. I have definitely seen a few pregnancies in women with IUD's, but it is not likely. They are a very good form of birth control. If you think you may be pregnant, it would be reasonable to take a home pregnancy test. The other option is that the IUD is causing you to have lighter periods. The hormonal IUD (IRENA/Skylab in the USA) are famous for decreasing periods-both the heaviness and frequency. I don't know what type of IUD you have, but it is possible that your decreased periods are due to your IUD. If your pregnancy test is negative, I would attribute it to the IUD.