I found that I had to wait 2 or 3 cycles before you regulate your periods. That was my findings at that time. Sorry i can't offer more in the way of help, but be patient with it. Let you physician know what you other symptoms are .

They put me on birth control to start my period cause it had been almost 2 years since I had one. I was on it 1 1/2 weeks and started the WORST period of my life. Gushing so bad 2 big pads filled in 10 minutes, huge clots, extreme pain in the cervix/uterus area. So bad my dr put me on something to stop it. Day 2, and it's slowed but not stopped. Freaking miserable. I hope yours isn't bad... wouldn't wish this on my worst enemy... maybe. Lol

I found it took 6 to 12 month to regulate things but it's now that I have gorn off the pill 8 years ago I am still fairly regular

I am have huge clots and severe cramping and bloating. I’m new to this whole process so I don’t know what to expect.