Early pregnancy spotting!

Hi ladies, after 2+ years TTC, we finally got a positive pregnancy test yesterday after our 1st round of <a href="https://glowing.com/glow-fertility-program">IVF</a>. Agreed to be cautious after a miscarriage at 6 weeks last summer. Only managed a few hours of enjoyment as the same afternoon I started with very very light spotting (light brown in colour, sorry if TMI) with mild cramps. I'm still using my progesterone (cyclogest) suppositories. Still have same symptoms today. Should I be worried?