Big Blood Clot. Cause for Concern?

Should i go to the ER or at least schedule an appointment with my gynecologist? I showed my mom and she says it's normal's seems big to me. I have painful cramps during ovulation and the first day of my period is the worst, today was cycle day 3. Thoughts? I touched it (I know) And it was jelly-ish but still had a thick, brolic touch to it.