Opinions?

I miscarried on March 18th at 6 weeks and 1 day. Bled just for 5 days. Got told I could try again as soon as I want. Took an ovulation test Thursday and it was positive so we did the deed. I've been sort of cramping the last 3-4 days had spotting/brown drops of blood for a day or so. I'm sure it's not my period since my boobs are not sore (trust me they hurt like hell when it's the time). What's your opinion? Ovulation cramping? My levels were down to 0 within are week. Any similar experiences?