First time!

Hi, this is my first time trying to conceive!

I have a heavy flow normally and I don’t always know when my cycle may start. But in this cycle I had tried 3 times. The 11th 13th and 15th by the 28th I had light spotting which never happens I’m not a spotter I just usually start. The next day was a medium flow. By the 30th I was back to spotting. Today, around noon I wasn’t spotting at all. I do still have cramps. Any advice would be appreciated!