Trying to conceive but getting bleeding I'm between periods

Hi everyone, I'm hoping for abit of reassurance/advice please. I'm 27 and was on the pill for 10+ years as I used to suffer with really heavy periods (never used to get spotting between periods though) so the doctor put me on the pill to help this. I started getting spotting between my periods a while back and the doctor thought it was due to my pill but she also swabbed me for infections and I had a smear test, both of which came back clear. I changed my pill and things seemed to settle down but I recently came off the pill (around 2 months ago) as my husband and I want to try for a baby. I had my usual withdrawal bleed, followed around a week later by what's seemed like a period but the blood was really dark. That lasted around 5 days, and then around 10 days after that finished I got what seemed like a normal period. Which finished on the 19th of November but today I've started bleeding quite heavily again. So all in all I've had 4 "periods" in the space of about 6 weeks. I'm seeing a lot of posts online about women not getting their period back for a while after stopping the pill but I can't find anything about the problem I seem to be having. I'll go and speak to my doctor about it but I was wondering if this had happened to anyone else?