Random brown spotting on pill

[SufferingSilently9]

Hi,

I'm currently taking Cilest back to back as advised by my gyno to stop my periods until my laparoscopy (finally given the date of 27th March!).

I have been taking Cilest since September, with breaks, and took a month of Provera from December to January.

For the past 2 weeks, I've been back on Cilest and on Friday, I noticed I'd started spotting brown (old blood maybe?) and then yesterday I bled as if it was my heaviest day, lots of pain etc for half a day then nothing in the evening. I'm so confused what is happening now as I'm back to spottting. My stomach is cramping in waves and I have shooting pains down my thighs and lower back.

I need advice as I don't know what's happening and I was hoping not to be back and forth the bathroom as this is my first week of a new job.

Thanks in advance all.