ignorance

Hi everyone!
I'm new here! My husband and I have been trying to conceive for a month. I stopped the pill on March 18th because we got married on March 17th, and due to the stress, I got my period on March 15th (through the pill) (just as a side note). I had ovulation on April 6th (detected via an ovulation test and also felt it). Naturally, we did our best. No other symptoms of pregnancy yet. Normally, I should get my period on April 20th. Here comes my question: We had sex again on Tuesday (April 18th), the day before my period was due. A few hours later, I had some bleeding, so I assumed my period had started. The bleeding wasn't heavy, just red for 2 days and very light brown for 1 day. "Thank goodness, it's my period," I thought. Today (April 25th), we had sex again, and I have light bleeding again. I don't know if my period has started or if it's just bleeding from sex. I feel all sorts of things (but I think it's also a bit of nerves). I last tested on Tuesday, April 18th, and it was negative. Any other ladies who have experienced this? I'm not sure what to do with this? Should I test again, or should I just wait?

Thanks in advance!