Terrible period after first month ttc!!

CB

March was our first month TTC. I’ve always had like 5-6 day periods. Days 2-4 would be pretty heavy bleeding, but only really cramping on days 2 and maybe 3, not super awful tho. Well, I’m on day 4 of this period and the cramps are still so awful. Like waking me up at night and I’m bleeding way worse than usual. A good bit more clots than I normally have as well. Is this normal? Could it be bc I started folic acid like 3 weeks ago?