31 Day Period

Amber

So, I have had my period now for 31 days! I have PCOS but it has to do with my pancreas. I am on Metformin for it so I can become pregnant with my husband when we are ready. My gyno said I was good to go to start trying and we had sex maybe 2 weeks ago one time and haven’t since then because of me having my period and being in a little bit of pain. Is this normal??? I’ve been spotting and having some cramps still for the past 2 weeks. Seems like it just won’t end. I have also taken two pregnancy tests and both negative. Anyone know what’s going on??