Hi I am trying for a baby and I have hashimotos disease my period is pretty strong like I couldn't skip the pill because my cycle was to strong and I would end up bleeding anyway and I started bleeding on Thursday only light and now its pretty much gone when I usually bleed for at least 6 days and the first three are heavy should I get a test

That's completely up to you. If you feel that your period wasn't normal and you may be pregnant, by all means get a test. Make sure to follow the instructions completely. Using first morning urine is very important for more accurate results.

Good luck.