Cycle length

I got my first period after MC about 5 weeks later (well 5 weeks from when I pasted everything naturally or 4 1/2 weeks from when bleeding started - not sure how it’s calculated at that point) but now I’m waiting for AF the next time and she isn’t showing. Did any of you still not have regular cycles for a while? Prior to MC i was a pretty consistent 28 day cycle and now I’m on day 33. I’m wondering if it’s even worth taking a pregnancy test as my cervix is high and firm but still open a bit. 🤔