Need a little help

Na
Woke up this morning at 3am with horrible cramps that I've never experienced before. I took some Tylenol. So when I got back up around 9 thus morning I noticed spotting that I've never done before my period.. I started clomid 50mg first time on Jan 28th.. Could clomid be the cause of this change in my body with the bad cramping and spotting? My period is due today. The spotting is brown...