Two cycles in One month/ ttc

I’ve been ttc for nearly 5 months now. I went to the doctor to have test taken to make sure I’m healthy and able to conceive. My doctor told me I’m cervix looked perfect and that I should take folic acid at least 800mg. So I started taking that in April of last month. This month me and my SO was intimate with each other and I noticed later that day I was spotting pink then eventually it became a menstrual period. So I have had 2 cycles in 1 month. Every time we are together like that I spot pink and I cramp a little.

What should I do?