I only have my period once-three times a year. I have no idea when it ever is. It can two months consecutively and then again 10 months later. My last period was April. Doesn't that mean I shouldn't be ovulating?

When I do have my period, it is always very heavy- like changing a super sized tampon every hour for 4 days kind of heavy.

What does this look like to you?

This just started last night. If it looks like implantation bleeding, how long should I wait to take a pregnancy test?